MITUTOYO 12- 16mm Holtest Inside Carbide Bore .005MM Micrometer with Master 368-104 You are Purchasing a a Mitutoyo 12 to 16MM Holtest Internal 3 Point Interchangeable Carbide Anvil Type Micrometer with Master, Model 368-104 Recently Calibrated. These Holtests are versatile, self-centering three-point internal micrometers for the accurate and efficient direct-measurement of internal diameters. Three anvils, evenly spaced at 120 apart, contact the internal wall surfaces and find true alignment with the axis of the bore for accurate ID measurement. FEATURES Highly durable because of carbide tipped contact points 12 to 16MM Measuring Capacity .005MM Graduation 3 1/2 measuring depth With Ratchet Stop for constant force. Includes setting master For More Information see: This item is manufactured by the world's largest metrology company, founded in 1934 that creates the most advanced micrometers, calipers, indicators and other measurement tools in the world. We have lots of quality inspection tools available. Additional prep fees may apply