Mitutoyo 526-162-21 Series 526 2-Point Inside Measuring Instrument, Bore Gauge, 1.50-3.95 mm, 0.001 mm Graduation, 2109AB-10, with Setting Ring

The Mitutoyo extra small hole bore gage features a split-ball design with stainless steel contact points to measure a hole's inside diameter and identify out-of-roundness issues with an accuracy to +/-4 µm. 

Features:

• Includes a Mitutoyo Dial Indicator
• Metric model
• Each bore gage model comes with a set of anvil sizes
• Models with dial indicators are fully protected by a rugged cover
• Gage stem diameter is 8 mm
• Interchangeable anvils are constructed of stainless steel for added accuracy and durability
• Supplied in a plastic case