Description
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 23 holes consists of 5 tapped holes that are 3/8-16 for clamping and 18 untapped holes Cross drilling design allows for efficient use of lower weight with maximum strength Package includes - 2 x matched pair 1-2-3 set up blocks 1-2-3 Machinist Blocks 23 Holes Matched Pair Dimensions 1" x 2" x 3" Precision Overall size is within +/- .0002" Flatness and parallelism are within 0.0002" Squareness on all sides to within 0.0002" Pairs are matched to a tolerance of 0.0002" 2 x Machinist set up blocks