4 Matched Pair Ultra Precision 1-2-3 Blocks 23 Holes .0001″ Machinist 123 Jig
Specification： Product Dimensions: 1″ x 2″ x 3″, 2.1 lbs. weight 23 holes consists of 5 tapped holes that are 3/8-16 for clamping and 18 untapped holes Accuracy with squareness on all sides within .0002″ per inch Hardened and precision Ground on all 6 sides of each block Cross drilling design gives minimum weight and maximum strength Made of high grade tool steel hardened and ground on all 6 sides of block. Accuracy high hardness and helpful for set-up work, heat treated and case hardened to HRC 57-62 Accurate and easy to clean for CNC machinist Accuracy machinist block for milling machine Well oiled ,cleaned up easily,nicely flat,good surface finish Package Including： .