Mitutoyo 511-845-20 Micrometer Head Bore Gauge, Range 6-10", Graduation 0.0005", Probe Depth 6"

Micrometer head is attached to the anvil for convenient and accurate dimensional setting. Now offers a longer plunger stroke while maintaining original accuracy. Carbide is used for the contact point ensuring high durability and wear resistance. High-accuracy measurement is aided by a large grip with a sponge-like structure that reduces heat transfer from the operator’s hand by 50%. Wide measuring range with sub-anvils. Optional extension rods can be attached for measuring deep holes. An optional inside-length standard, such as a setting ring or Inside Micro Checker is required for accurately setting the gauge before measurement.