Premium Brand 1-2-3 Blocks

• 23 holes for easy clamping, 5 tapped, 18 untapped thru holes

• Complete in a shop-hardened case.

• Surface finish: 6-16µ"

• Dimensional Accuracy: .0002"/1"

• Parallelism: .0002"/1"

• Includes hex wrench and 5 mounting bolts (3/8"-16)