Inside Micrometers

Digital Three Point Internal Micrometers
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Features:

Self-centering with 3 points, fit for accurate measurement of blind holes and through holes.
Can measure deep holes by attaching an extension rod (optional ).
Carbide-tipped contact points.

Specifications:
Measuring Range Order No. Reading Limit Error
6-8mm 213-301 0.001mm 0.004mm
8-10mm 213-302 0.001mm 0.004mm
10-12mm 213-303 0.001mm 0.004mm