1-2-3 PRECISION BLOCK SET (11 HOLES)

• Hardened and precision ground on all 6 sides of each block.


• Accuracy with Squareness on all sides within .0001 per inch.


• Consists of 5 tapped holes 5/16 - 18 for clamping and 6 untapped holes drilled through.


• MATCHED PAIRS AND SOLD AS PAIR.