2-3-4 PRECISION BLOCK SET (23 HOLES)

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

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

• 23 holes consist of 5 (3/8"-16)tapped holes for clamping and 18 untapped holes drilled.

• MATCHED PAIRS AND SOLD AS PAIR