51-800-1 Value Collection 1-2-3 Block Set

Matched 1-2-3 Block Set

Features include…

• Supplied in Matched Pairs
• 23 Holes
• 5 tapped 3/8-16
• 18 untapped
• 0.0002″ Parallelism
• Precision Ground and Case Hardened on all 6 sides.
• Hardened Steel to RC 55-60.