50 piece gage ball set includes 25 pairs: metric sizes from 1 mm to 25 mm
Chrome steel gage balls are hardened to 63RC
Ground and lapped
Grade 24 accuracy - AFBMA certified
Description
Metric size chrome steel gage balls are hardened to 63RC. Ground and lapped. Grade 24 accuracy - AFBMA certified. Includes study case. Comes with one pair (two gage balls) each from 1 mm to 25 mm.