Mitutoyo Digital Inside Micrometer This Caliper-Type Inside Micrometer has jaws that are made of high-grade tool steel, a locking clamp for positive locking of spindle, and a satin chrome finish. Features include... 1" - 2" / 25-50mm Measuring Range 0.00005" / 0.001mm Resolution SPC Output Carbide Tipped Measuring Faces + 0.0003" Accuracy