1-2-3 Blocks Matched Pair Hardened Steel 23 Holes (1x2x3) 5 Pair Ultra Precision Machinist Milling

1-2-3 Blocks Matched Pair Hardened Steel 23 Holes (1x2x3) 5 Pair Ultra Precision Machinist Milling

23 holes consists of 5 tapped holes that are 3/8-16 for clamping and 18 untapped holes Precision ground steel and case hardened on all six sides Squareness on all sides within 0.0002 Cross drilling design gives minimum weight and maximum strength These steel blocks are suitable for all kinds of the machine tools Dimensions-  1" x 2" x 3", 2.1 lbs. weight


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 with squareness on all sides within 0.0002" per inch.


23 holes includes (5) 3/8-16 threaded holes for clamping and (18) untapped holes


Cross drilling design allows for efficient use of lower weight with maximum strength