Square Croblox Gage Block - 100.0 mm, Grade AA
SQ CROBLOX MM GAGE BLOCK
6.7 mm Hole in center, counter sunk (both faces)
Accuracy Grade: AA
Premium Croblox Chromium Carbide Construction
Rockwell "C" Hardness of approximately 71-73
Size: 24.1 mm x 24.1 mm