SPI 91-309-5 Ball Bearing V-Block, 5"

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: 3-3/8" square x 1-5/8" O/A Ht.

Includes:

• Clamps and test ball