Inside Micrometers

Three Point Internal Micrometers
img
Features:

Carbide-tipped contact points and three lateral protruding fingers for highly wear- resistance.
Measurement can be taken close to the bottom of a blind bore.
With Ratchet Stop for constant force.
With precision ring gauge for zero setting and re-setting.

img
Specifications:
Measuring Range Order No. Graduation Limit Error
6-8mm 243-301 0.001mm 0.004mm
8-10mm 243-302 0.001mm 0.004mm
10-12mm 243-303 0.001mm 0.004mm
12-16mm 243-304 0.005mm 0.004mm
16-20mm 243-305 0.005mm 0.004mm
20-25mm 243-306 0.005mm 0.004mm
25-30mm 243-307 0.005mm 0.004mm
30-40mm 243-308 0.005mm 0.004mm
40-50mm 243-309 0.005mm 0.004mm
50-63mm 243-310 0.005mm 0.004mm