Inside Measurement - Page 18

Manufacturer: Mitutoyo Brand: Mitutoyo Model: 368-998

The Mitutoyo 368-998 Holtest Type II three-point internal micrometer set has alloyed-steel points, a measurement range of 4.0 to 8.0” and is precise to 0.0002”, with + or - 0.00025” of accuracy. Alloyed-steel measuring contact points offer durability, while contact point geometry allows the instrument to measure to the bottom of a blind hole. The ratchet stop offers constant force for repeatability. Includes inspection certificate ensuring that the exact micrometer purchased has met National Institute of Standards and Technology master standards. This gage set includes four complete display units, two setting rings, an extension rod, and a fitted wooden case. Bore gages measure holes, or bores, in a workpiece. They can measure the interior diameter of a hole at any depth, while internal micrometers can only measure to the depth of their teeth. Bore gages are typically calibrated with a setting ring. Bore gages come in two types, one simple, and the other direct-measuring. Simple bore gages are used with a caliper to transfer the hole measurement, while the more complex gages take the measurement directly, and display the measurement through a vernier, dial, or digital display. Bore gages have a two- or three-point contact, which indicates how many points on the gage head touch the inside of the bore. Two-point contacts are better at measuring ovality, while three-point systems are used to measure lobing, or triangular form error. Pistol-grip bore gages are used for fast, single-handed operation with good repeatability from one operator to another. Bore gages, regardless of type, can be used in some special applications, such as measuring threads, spline pitch diameters, and deep bores. Mitutoyo manufactures precision measuring tools, metrology equipment, and systems. The company was founded in Tokyo in 1934 and formed Mitutoyo America Corporation in 1963, which is headquartered in Aurora, IL. What’s in the Box? Mitutoyo 368 series 4 to 5” three-point internal micrometer Mitut...

Manufacturer: Accusize Co. Ltd. Brand: Accusize Industrial Tools Model: E607-1018

Round

Manufacturer: INSIZE Brand: INSIZE Model: 1148-P102

0276 inch disk point.

Manufacturer: TTC Brand: TTC

Plunger of gages expand from center, under spring tension, to size of hole being measured and is then locked in place by knurled knob. Measurement is made by a micrometer or a caliper.

Manufacturer: MEDA - SUPERIOR IMPORT Brand: Meda - Superior Import

• Handy gage for measuring cylindrical bores, bearing work and for gaging slots. • Made from polished stainless steel • Clearly etched graduations for precise measurement. (Inch one side, mm's on the other)

Manufacturer: Starrett Brand: Starrett Model: 830A

This small hole gauge is well balanced tool that is ideal for accurately measuring small holes, slots, grooves, and recesses in all kinds of work. Accurate measurement is obtained by slightly "rocking" this gauge in the hole to be measured. This will guarantee contact at the true diameter. The final size is then obtained by measuring over the ball contacts with a micrometer.

Manufacturer: Starrett Brand: Starrett Model: 229C

Telescoping gauge is used for determining the true size of holes, slots, and recesses up to 6". The ends of both contact is hardened and ground to a radius to allow proper clearance on the smallest hole the gauge will enter. This tool must be slightly "rocked" in the hole being measured to ensure that the tool is on the proper diameter before it is locked and withdrawn. The final hole size is obtained by measuring over the gauge contact with a micrometer.

Manufacturer: Telescope Brand: Telescope Model: 3068

Manufacturer: INSIZE Brand: INSIZE Model: 7261-300

Inside Spring caliper, 12 inch.

Manufacturer: INSIZE Brand: INSIZE Model: 4208-1

Small hole gage set, 125 ~ 5 inch.