







1-2-3 Blocks Matched Pair Hardened Steel 23 Holes (1x2x3) 123 Set with Screws & HEX Key Precision Ground Machinist Set Up Blocks
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Product Details
Size within +/- .0001; Flatness and parallelism within .0001; Squareness on all sides is 0.0003 per inch.
Cross drilling design gives minimum weight and maximum strength.
23 holes consists of 5 tapped holes that are 5/8in-11 for clamping and Holes - 18 untapped holes.
Made of precision-grade tool steel hardened and precise ground on all 6 sides of block, heat treated and case hardened to HRC 56-60.
Package Include - 2 x 1-2-3 Block, 5 x 5 x 3/8-16 stainless steel socket head cap screws, 1 x A Hex Key, 1 x a fitted case.