SPI 91-308-7 Ball Bearing V-Block, 2-1/2"

Features:

• Accuracy of ball sphericity: 0.000025"
• Balls finished to .2 micro inches, hardened to 62 RC.
• Overall accuracy of matched pair: ±5 microns
• Case iron base and housing are heat stabilized and seasoned
• Base dimensions: 2-3/16" square x 1-1/16" O/A Ht.

Includes:

• Clamps and test ball