23 Jul 1-2-3 Blocks 23 Holes .0002″ Machinist 123 Jig 1 Matched Pair High Precision US
Key Features: Heat treated and case hardened to HRC 57-62. Made of precision-grade tool steel hardened and ground on all 6 sides of block. Accuracy and squareness on all sides within 0.0002". 23 holes includes (5) 3/8-16 threaded holes for clamping and (18) untapped holes....