1-2-3 Machinist Blocks 23 Holes Matched Pair 1x2x3 Ultra Precision Machinist ...
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Product Details
Robust and durable - Heat treated and case hardened to HRC 57-62. Made of precision-grade tool steel hardened and ground on all 6 sides of block||Precise - Accuracy and squareness on all sides within 0.0001-0.0002||Feature - Cross drilling design gives minimum weight and maximum strength||Package includes - 2 x matched pair 1-2-3 set up blocks