Premium Brand 1-2-3 Blocks

Features:

• Hardened (HRC 55—60)
• 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)