A cast-iron or steel fixture having a precision ground adjustable plate. It may consist of either a sine plate or scale graduated in degrees to permit accurate adjustment. It is used for setting up angular work on a jig borer, milling machine, shaper, drill press or grinder.
A device consisting of a precision ground straight edge at the extremities, on which buttons are attached, so that their centers are equidistant from the straight edge, or working edge, of the tool. It is used for convenience in laying out or machining to locate work at given angles on angle plates.
A precision fixture consisting of a sine plate hinged to a base plate, the opposite end having one or more sine plugs of identical diameters, accurately spaced from center of hinge to center of sine plugs. It is used for machining, layout, and checking the angles on work in relation to the base surface.
A precision tool designed for use with surface plates for inspection or layout operations and to provide a simple and effective means of obtaining a reference line contacting the work in any plane. It consists of precision ground ends parallel to each other and square with the longitudinal axis. The working surfaces may be continuous or broken by concave divisions equally spaced to develop a narrower working surface.
A precisely calibrated instrument used as a master reference standard to establish an absolute horizontal plane. The metal base is seasoned and heat treated or otherwise specially treated to insure maximum stability, and is accurately machined and scraped to the true plane on the contact surface. The top plate is of nonconductive heat insulating material. It has a very sensitive vial graduated to indicate a variation of 0.0005 inch (0.0127 mm) per foot (0.3048 m) in a horizontal plane. It may have a cross level vial to assist in setting the true horizontal by showing position laterally.
A gage used for the control of specified external dimensions. It consists of a frame and gaging members such as buttons, pins, blades and anvil. The gaging members may be set and locked to specified maximum and minimum limits within the given size range of the gage.
A gage used for the dimensional control of a specified external thread. It consists of a C-type frame and gaging members (rolls). The gaging members may be set and locked t0 specified maximum and/or minimum limits within the given size range of the gage.
A rectangular or square precision tool having a flat working surface(s) of specific flatness. It is used as a datum plane in connection with various layout, inspection, and calibration operations. It may also be used as a lapping plate, but is not grooved. See also BLOCK, LAPPING; PLATE, DUPLEX, SURFACE AND LAPPING; and PLATE, LAPPING.
A flat, hardened piece of steel, having microfinished parallel surfaces capable of adhering to each other when two or more flats are firmly pressed (wrung) together. It is used for inspection and layout operations requiring extreme accuracy. See also OPTICAL FLAT.
A cylindrical item, flatted on one side, used for checking the diameter, or testing roundness of measuring wires or pins. It has hardened and ground surfaces, and may be plain, or have 60 degree "V" shaped peripheral grooves.
A gage designed to compare dimensional characteristics by indicating a difference in air flow. The gage is connected to an external air supply, the pressure is regulated and released between a gaging member and the item being checked. A variation in size, or a difference in size from a master, will be indicated by a difference in air flow. It consists of a GAGING MEMBER, COMPARATOR, AIR PLUG, an indicator, and may include a pressure regulator. Excludes GAGE, AIR FLOW, METALIZING; GAGE, SMALL HOLE; and GAGE SET, SMALL HOLE.
A gage used to obtain precise measurements or variances between objects electronically. It may include a power supply, computer, measuring amplifier, or probes. The output may be in analog, digital, opto-electronic, or printed form. See also ANALYZER, SURFACE FINISH, CONTACT.
An item designed to accurately position another item for inspection, testing, maintenance or machining. The item is capable of linear and/or rotational movement but is not furnished with a work-holding device such as a chuck or vise. It may be manually operated or motor driven. Excludes POSITIONER, WELDING.
A gage designed for measuring the wall thickness, for example of pipes and tubes and parts affected by corrosion. It emits sound waves which are electronically controlled and recorded. The measuring result is obtained by electronic computation. The thickness gage comprises a TRANSDUCER, SUPERSONIC TEST and an indicator.
An item used with a GAGE (1), COMPARATOR, ELECTORNIC to obtain longitudinal measurements or measurment variations. The output is transmitted electrically to an INDICATOR (1), ELECTRONIC COMPARATOR GAGE.
An item designed for nondestructive measuring of the thickness of metallic or nonmetallic coatings on metallic or nonmetallic base materials. Measuring is effected in accordance with the adhesive force process, the magnetic process or electronically.
A gage used for the dimensional control of the specified depth of a hole, groove or slot, or height of a boss or protrusion. It consists of a moveable cylindrical gaging pin, suitably retained within a body.
An item of flat and transparent design containing several etched circles, the diameters of which represent allowable tolerances of the gage when placed over specific data (test dots) on a plotting board.
A gage used for the dimensional control of the taper of a specified hole. It consists of a gaging member or members and handle. For gages designed for dimensional control of the minor diameter of a taper thread, see GAGE,PLUG,TAPER PIPE THREAD MINOR DIAMETER.
A gage used for the dimensional control of the taper of a specified external cylindrical component. For gages designed for dimensional control of the major diameter of a taper thread, see GAGE,RING,TAPER PIPE THREAD MAJOR DIAMETER.
A gage consisting of a frame and jaws into which the engagements are formed to one or more specific sizes. The engagements may be in the sides and/or ends of the frame. It is used for the control of specified external dimensions. Excludes GAGE,SNAP,PLAIN,ADJUSTABLE.
A bar or slip of wood, metal, or plastic, having one or more long edges made straight within a desired degree of accuracy. It is used for testing straight lines or surfaces, drawing straight lines, and the like. Straightedges having one beveled edge may be graduated on the beveled edge. Excludes STRAIGHTEDGE, PARALLEL RULING, GUIDE CORD; SCALE (as modified); RULE (as modified) and RULER (as modified).
A measuring tool used to test the angle of lathe centers, or as a standard for grinding and setting screw thread cutting tools. It consists of a short-tempered steel rule, one end of which is ground to a male angle and the other end to a female angle.
An instrument used for laying out angles, for transferring any angle from one piece of work to another, or for determining an angle or combination of angles. It consists of a body, a slotted blade, and an auxiliary blade which can be clamped to a slotted blade.
An instrument used for laying out, checking, or measuring any angle, however slight, or for adjusting surface of work to a given inclination. It consists of a slotted body and offset slotted blade or tongue. A tension lock nut is provided.
An instrument used for laying out work by the scribing of lines at a given height from some face of the work, of transferring the height from one piece to another. Consists of a rectangular base to which a spindle is mounted and pivoted in an upright position. A scriber is clamped to spindle in such a manner so as to be adjustable.
A tool composed of two heads, each with a point, mounted on and adjustable along a round rod or square bar. It is used to scribe large circles or to measure distances between points too great to be reached with ordinary dividers.
A group of hardened metallic blocks with parallel surfaces superfinished flat to permit wringing together. They may be in various sizes according to requirements. Tolerances are held so that accumulated error is very small. Used in set-up and inspection of precision work.
A precision measuring instrument for making accurate thickness measurements of paper, leather, sheet metal and other thin materials, consisting of a dial indicator mounted on a metal frame. A piece to be measured is inserted in the throat of the gage, the throat opening is closed upon the piece, and the thickness is indicated upon the dial.
A measuring device used to determine the amount(s) of camber, caster, king pin inclination, toe-in, and turning radius, or certain combinations of the above, for alignment of automotive vehicle front wheels. For items which indicate turning radius only, see GAGE, TURNING RADIUS.
A multiple-ring gage used for checking the diameters of twist drills, pin punches, taps, etc. It consists of a thin rectangular steel plate with a series of holes corresponding to the diameters of letter-size and fraction-size twist drills. Decimal equivalents and size are stamped adjacent to each hole.
A multiple-ring gage used for checking diameters of twist drills and drill rods. It consists of a thin rectangular steel plate with a series of holes corresponding to the diameters of number-size twist drills. Decimal equivalents and size are stamped adjacent to each hole.
An instrument consisting of a hardened steel base (head) and a rule (or rod) which slides through the base. It is used to measure or determine the depth of holes, slots, and grooves, and if the base is graduated in degrees and the rule is adjustable, to duplicate angles and chamfers.
A measuring tool used to determine the thickness of material, rivet diameter required, and the grip length. It consists of a thin rectangular brass reference plate, a steel slide with a hook and a brass spacer.
One or more tempered steel blades (leaves) ground to and marked with their respective thickness and mounted in a holder or encased within a frame or case into which the leaves fold. It is used for checking narrow slots or gaging the clearance between fitted parts. Excludes BLADE, THICKNESS GAGE. See also GAGE, GAP SETTING.
A measuring instrument used to transfer inside measurements of holes or slots to micrometer calipers for direct reading. It consists of a rod with spring expanding plunger to which is attached a handle designed to lock plunger at any point within the range of the gage. Excludes GAGE, SMALL HOLE.
A measuring tool used for close and quick reading of both inside and outside measurements. It consists of a ride stock with fixed jaw, an internal sliding graduated tongue with integral jaw, and slide locking device. For items designed to indicate both the circumference and the diameter of circles, cylinders, spheres, etc., see CALIPER, SLIDE, DIAMETER-CIRCUMFERENCE.
An instrument with two legs hinged at one end, one of which is similar to a divider leg and the other to a leg on an outside caliper. It is used to scribe arcs, locate centers, or as a marking gage in lay-out work.
A tool used to quickly determine the thickness of sheet steel, sheet iron and steel plate. It consists of a rectangular plate or disk plate with slots cut around the periphery and marked according to a standard scale.
A tool used to quickly determine the size number of wire, drill rod and/or for gaging the thickness of plates and sheets according to a wire number standard. Because of different standards for wire (e.g., nonferrous, stubs, American, Imperial, music, etc.), diameters of identical sizes differ in number size according to standards used. It may be a rectangular plate or disk slotted with gaging sections around the periphery for measuring thickness of sheets and plates.
A very sensitive instrument used to establish accurately the horizontal plane. It consists of a machined and scraped metal base with an involute groove or flat base. It has an adjustable or nonadjustable vial which may be graduated or plain. It has no mounting facilities.
An instrument used to establish simultaneously, two horizontal planes at right angles. It consists of a body in the shape of a square with a level vial on the blade and beam, and also a plumb vial on the beam for finding a vertical plane.
A precision instrument used to determine a horizontal plane in all directions on one setting. It is centrally located in relation to the periphery of the top of the item, for centering the bubble. The item may be mounted to a cylinder.
An instrument used to establish the horizontal plane of a course line as in laying brick or stone walls, foundations, buildings, roads, etc. It consists of a lightweight pocket type level with hooks at each end for attaching on or hooking over a line.
A small instrument suitable for carrying in pocket and used for checking the horizontal plane. It consists of a small metal, wood, or plastic base with a vial so set as to center itself when held in a horizontal position. Do not use if a more specific item name exists.
An instrument used for accurately checking the horizontal plane over small obstructions. An instrument repairman's tool. It consists of a bench level with the base modified by adding an inverted V-block leg on each end.
A precision master reference tool used as a standard for setting micrometer calipers and snap gages; also in setting up and checking comparators. It consists of a flat steel disk, or a cylinder, precision ground and lapped to size.
A precision tool used as a standard for setting calipers and comparing gages, testing precision tools and measuring parallel surfaces, rings and cylinders. It consists of high grade steel rod, precision ground and lapped to size as to length.
A cylindrical piece of steel, precision ground and accurate in diameter throughout length. In sets of 2 or 3, used with micrometer or vernier calipers to measure splines, dovetails and angles. Excludes WIRE, MEASURING.
A cylindrical piece of steel, precision ground and true in diameter throughout length. In sets of 2 or 3, used with micrometer or vernier calipers to measure the pitch diameter of screw threads and gears. Excludes ROLL, MEASURING.
A steel attachment tool of a combination square. One side forms a 90 degree angle, the other a 45 degree angle, with the blade. When assembled on blade it is used to determine the square (90 degree), and miter (45 degree) angles.
A mechanism for amplifying and measuring the displacement of a movable contact point, thereby measuring a dimension or variation from a standard dimension. It consists essentially of a case with means for mounting the indicator, a spindle carrying the contact point, an amplifying mechanism, a pointer and a graduated dial. May include accessories and/or attachments. Excludes INDICATOR, SCALE. See also GAGE, DEPTH, DIAL INDICATING.
A complete external thread gage used for the size control of male pipe taper threads. Consists of three rotatably mounted annular gage rolls so spaced on a base as to indicate basic, maximum, and minimum limits.
A specially designed measuring tool having one or more thickness blades and/or wire feelers encased in or attached to an appropriate holder. The blade type must have an air gap adjusting tool used for bending the prongs of spark plug electrodes and the like; whereas the wire feeler type may have such an adjusting tool. Excludes GAGE, THICKNESS.
One or more blades (leaves) of tempered steel, ground to and marked with their respective pitch, expressed as number of threads per inch in the English system and as millimeters or fractional parts thereof in the metric system. It is used for checking the pitch of external or internal screw threads.
A precision instrument consisting of a dial indicator mounted on a block which moves at right angles to the support frame known as the sled. The sled has two-line contact points which are at all times in alignment with the walls of the cylinder. The gage is equipped with a movable dial, and a handle is provided for insertion of the gage into a bore or cylinder. It is used to check and inspect the diameters of cylinders for taper, out of roundness, and accurately transfer the diameters of the cylinder bores.
A precision instrument designed for checking connecting rod bores for out-of-roundness. Consists of a specially designed body with one surface at right angle to self-centering contact points which actuates the amplifying mechanism of a dial indicator.
A precision measuring instrument used for rapid and accurate measurement of internal diameters. Consists of a body with integral cast dial indicator with actuating anvil contact points. Excludes GAGE, CONNECTING ROD BORE and GAGE, CYLINDER.
A hand held instrument consisting of a pair of bowed arms on jaws having a clamping action. A dial indicator of continuous range (revolution counter with double dial) (outer dial can be rotated) is mounted at the pivot point of one arm with a large handle extended from the same arm. Used for quick checking of outside dimensions on forgings, castings, dies, plastics, and sheet materials.
An item made of tempered steel, usually strip of leaf in shape, 12 inches (304.8 mm) or less in length, ground to and normally marked with its specific thickness. The blade may have a hole in one end, which allows for insertion in a thickness gage used either singly or with a readily attachable handle for checking or setting valve tappets, piston clearance, ring gear and pinion play, guided missile antenna radome and guided missile test stand cradle clearance, and the like. Excludes bulk thickness gage stock.
A flat, steel plate of rectangular, square or semicircular shape, graduated in degrees. A pivoted arm is attached to the plate by means of a stationary bolt and thumb nut which locks the arm in any desired position. Used primarily in the metal working trades for laying out and transferring angles, scribing lines, and checking clearances on end mills and the like. Excludes PROTRACTOR, ONE ARM; PROTRACTOR, TWO ARM; PROTRACTOR, THREE ARM.
A measuring instrument commonly used in the machinist trade for setting or checking bevels, transferring angles, checking cutter clearance, laying out angles and scribing lines. Consists of a rotatable disk, graduated in degrees, mounted on a metal frame base, and an adjustable steel blade or scale which is locked in position by a thumb nut, or clamped by an eccentric stud. May also be equipped with one or two small auxiliary vernier scales which enable a more accurate reading. Excludes PROTRACTOR, ONE ARM; PROTRACTOR, TWO ARM; PROTRACTOR, THREE ARM.
An instrument consisting of two adjustable legs joined at one end by a pivot and each leg terminating in a sharp point at the other end. Used primarily by machinists and sheet metal mechanics for marking measurements, describing circles and laying out work.
A precision measuring instrument used to determine accurate internal or external measurments. It consists of a CALIPER, SLIDE with a small auxiliary scale made to slide along the main scale to determine accurate fractional parts of divisions of the main scale.
A precision measuring instrument used to determine accurate measurements of recesses and depth of holes. It consists of a GAGE, DEPTH, RULE with a small auxiliary scale attached to the base and through which the graduated rule slides.
A straight cylindrical precision instrument consisting basically of a spindle, calibrated sleeve, and a calibrated thimble. Designed to be readily attached to special gages, fixtures, tools, and the like, or installed as an integral part of a machine, where critical adjustments and measurements are required.
A small transparent vessel, inclosing a liquid with an air bubble. It is the indicating part of a level. The item may be cylindrical in shape, or a comparatively flat, cicular item, but does not have a mounting hardware. For mounted items and items including mounting or mounting hardware, see LEVEL (as modified).
A precision instrument designed for accurately measuring the depth of grooes, holes, or irregular parts. It consists of a dial indicator permanently attached to a horizontal base. Excludes INDICATOR, DIAL.
An inside measuring gage consisting of a graduated dial, a series of rods, and a case. It is used to check crankshaft webs for distortion or deflection, misalignment and excessive wear of bearings in any type of engine. MAY ALSO BE USED TO CHECK STRAINS IN ENGINE FRAMES, MOUNTINGS AND THE LIKE.
A measuring tool consisting of a graduated, grooved or slotted blade, and a head with square and miter faces. It may have a center head and/or a protractor head. The head(s) may be set at various positions along the blade and may include a scriber and/or one or more levels.
A measuring tool consisting of a metal body (long leg) and a tongue (short leg) forming a 90 degree (1.6 radians) angle. Both the body and the tongue may be of the same thickness or may be tapered from the apex to the end of each leg. The item is graduated either on both edges or the outside edges only. May be inscribed with one or more reference tables. The item may be graduated for at least a portion of the blade in increments smaller than 1/32 inch (0.8 mm).
A measuring tool consisting of a onepiece, precision-ground steel body and tongue forming a 90 degree angle. It is graduated on the inside edge of the tongue (short leg) and the outside edge of the body (long leg).
A measuring tool consisting of one or more blades and a beam with square faces on two sides. The beam and blade when assembled form a fixed 90 degree angle. The beam may be set at various positions along the length of the blade. If only one blade is included, it must be other than a drill grinding blade.
A tool of various shapes and design used primarily for checking the point angle of twist drills or as a standard for accurately grinding the point on twist drills. Some types may be used as a hook rule, plain rule, depth gage, height gage, try square, level, slide caliper, countersink gage, or any combination thereof. A portion of the tool, or a combination of assembled parts forms either a 59 degree or a 118 degree angle. See also SQUARE, DOUBLE.
A mechanism for amplifying and measuring the displacement of a movable contact point, thereby measuring a dimension or variation from a standard dimension. It consists essentially of a wedge or box shaped graduated mechanism at one end and a spindle carrying the contact point at the other end. It also has a means of mounting on a lathe tool post, height gage, surface gage, or other types of equipment. Excludes INDICATOR, DIAL.
One or more blades (leaves) of tempered steel ground to and marked with their respective taper. It is used for measuring the inside diameters of tubing, nuts drilled for tapping, and the width of slots.
A graduated measuring instrument of flat tempered steel, to one end of which is attached a right angle piece of metal which protrudes beyond the width of the rule. It is used to measure through holes, hubs of pulleys, to set calipers and dividers, and to measure from points where the user cannot see if rule is even with measuring edge.
A graduated one piece wood or metal measuring instrument, used in pattern making. The graduations are adjusted to compensate for the shrinkage of metal casting. The shrinkage of cast metal varies and shrinkage rules are made in various graduations. For combination square "shrink" blades, see BLADE, COMBINATION SQUARE.
A precision adjustable end measuring instrument designed for making accurate internal linear measurements of cylinders, rings, and the like. It consists of a micrometer head with either extension rods or slide caliper-style jaws.
A precision measuring instrument used for exact measurements of the pitch diameter of male screw threads. It consists of a U-frame with a micrometer spindle, and fixed anvil, shaped to the form of the thread to be measured.
A precision measuring instrument used for making exact external measurements of thickness, outside diameters, and the like. It consists of a rigid steel base with integral U-frame and micrometer screw attachment, making it possible to be used in an upright position when placed on a bench.
A precision measuring instrument with a micrometer screw attachment used for making exact external linear measurements of thickness, outside diameters, or distances over two parallel planes. It consists of a U-frame and a micrometer, the spindle of which is aligned with an opposite anvil. It may incldue a dial indicator, digital display, and/or a push-button mechanism which activates a retractable anvil to assure uniformity of contact pressure, and permits use as a visual comparator. Graduations may be in inches and/or millimeters.
A precision measuring instrument used to accurately measure the wall thickness of tubing and pipe. It consists of a U-frame with micrometer. The fixed anvil is either semispherical or cylindrical in shape.
A measuring instrument used to transfer inside measurements of holes or slots to micrometer calipers for direct reading. It consists of a handle attached to a spring expanding ball and is usually designed with means of locking the ball at any position within the range of the gage. Excludes GAGE, TELESCOPING.
A narrow strip of flexible material, graduated with markings to indicate a specific type of measure such as arithmetic, geometric, metric, or the like. To be used as a replacement for encased measuring tapes.
A group of two or more steel strips of various thicknesses and lengths which may be used singly or in combinations for checking the sizes of narrow openings, slots and clearances. Excludes BLADE, THICKNESS GAGE.
A flat, transparent piece of glass, generally of fused quartz, with one or both principal surfaces polished to within a few millionths of an inch of a true plane. It is used in conjunction with a monochromatic light source to measure the flatness of precision finished surfaces, and to determine the distance and parallelism between precision finished surfaces by comparison with known standards. In operation the flat is superimposed, reference surface downward, on the parts under test and when illuminated by monochromatic light the rays reflected from the reference surface are either reinforced or neutralized by the rays reflected from the surface under test producing interference bands which reveal any variations in the thickness of the film of air between surface under test and the flat. Excludes optical parallels.
A narrow strip of flexible material graduated with markings to indicate a specific type of measure such as arithmetic, geometric, metric, or the like. All tapes are used principally in measuring distances and dimensions too long to be measured by a ruler, are usually enclosed into a case with accommodations for rewinding and may or may not have a ring at one end. Includes dressmaker tapes to heavy-duty types sometimes called surveyor's chains, usually mounted in reels with holding handles.
A bench-type micrometer with a controlled contact load mechanism. It consists of a heavy cylindrical bed on which is mounted a headstock containing a Micromatic screw, and a sliding tailstock containing both the mechanism for maintaining constant measuring load and the anvil.
A collection of steel pins, about 1-1/2 inches (38.1 millimeters) long, used for sizing drill holes and slots, finding centers, determining locations and similar operations. Each pin is tapered on the lower half for easy insertion into a hole. It consists of different size pins, each size in pairs, usually in ranges of specific series drill sizes, in a case.
A spherical piece of metal, carbide, ceramic, plastic or synthetic gem, precision ground and accurate in diameter and sphericity. It is used in conjunction with measuring tools to measure surfaces where rolls or wires will not make contact, such as countersinks, internal grooves, tapered diameters, dovetails, and the like. For sets of different diameters, see BALL SET, MEASURING.
A tempered steel strip, usually furnished in rolls, within a case. Furnished in various thicknesses and approximately 1/2 inch (12.7 mm) wide by 25 feet (15.2 m) long. Usually marked at 6 inch (152.4 mm) intervals with a line and the thickness in decimals of an inch/millimeter. Excludes BLADE, THICKNESS GAGE; GAGE, THICKNESS; and GAGE, GAP SETTING.
A gage employing a vernier type slide specially designed as a maintenance tool to measure the amount of erosion of the bore diameter of a CANNON (as modified). It may include a case. See also BORESCOPE.
A hand-held instrument consisting of a pair of straight arms with outward inclined measuring ends, having an expanding action. A dial indicator is mounted at the pivot point of one arm. It is used for quick checking the diameters of bores and internal grooves.
A very sensitive vial, level mounted in a tubular enclosure with mounting facilities. It is designed to be mounted by holes in mounting ears or holes thru tube to a flat surface or surfaces. It may also include mounting screws. The vial may be graduated or plain.
A sensitive instrument used to establish accurately the horizontal plane. It consists of a vial(s) in an enclosure which may or may not have mounting holes. It is mounted in or on a flat plate base. The vial may be graduated or plain.
A precision measuring instrument used to determine accurate internal or external measurements. It consists of a ride stock with fixed jaw and an integral sliding tongue with integral jaw. The measuring value is electronically calculated and digitally displayed on the sliding tongue.
An instrument which is similar to a caliper or micrometer caliper, but which measures the perpendicular distance from its fixed base with a movable arm. The reading may be seen on a scale and vernier, dial display or the like. Excludes CALIPER, MICROMETER, BENCH.
A very sensitive instrument used to establish accurately the horizontal plane. It consists of one or more electronic sensing heads which are connected to or may include an indicating meter. The meter will indicate the horizontal difference between the base of the sensing head and the plane the head was adjusted to.
An item of various shapes and sizes, designed to be attached to the actuator spindle on a measuring instrument. It is designed to touch the item on which the measurement is to be made and may do so with a ball, roller, lever, and the like.
A device for holding/supporting various items including lights, measuring tools, instruments and the like. It is affixed to the surface to which it is mounted by magnetic force. For holding items on a machine tool see CHUCK, MAGNETIC.
A measuring instrument with at least two sections. It can be extended or compressed by the sliding of overlapping sections. It may include such features as a graduated scale, a built-in measuring tape, and/or one or more VIAL(s), TUBULAR MOUNTED. Excludes TAPE, MEASURING and RULE, MULTIPLE FOLDING.
A precision measuring instrument used to determine accurate measurements of recesses and depth of holes. It consists of a GAGE,DEPTH,RULE with an integral sliding tongue. The measuring value is electronically calculated and digitally displayed on the sliding tongue.
A laser transmitter used in topopraphic and geodetic surveying or precise alignment operations. It is designed to make horitontal and/or vertical leveling in single or dual grade. It may possess a scanner, remote control, radio and other accessories such as a tripod and the like. It may be combined with a RECEIVER, LASER. Exclude: METER, RANGE LASER.
A precision measuring instrument used to determine accurate internal and external measurements of a slide caliper with an integral dial indicator. May include means to determine depth and step measurements.
An item for use with an INDICATOR,DIAL for setup of machinery and equipment requiring precise, accurate alignment. It consists of a base with upright post and indicator holding rod. It may be furnished with additional accessories that adapt to holder for performing various tests.
A group of tools, including a steel rule, graduated rods and stops, hand oiler, magnifying glass, and the like, used as accessories to a GAGE, CANNON BORE EROSION. It may include a case and an instruction book.
A group of items, composed principally of measuring tools, for use in machining. Included are calipers, telescoping gages, screw pitch gages, rules, and the like. Tools, nonmeasuring in function, such as hammers, tool boxes, etc., may be included.