Matched Pair 1-2-3 Setup Blocks - Industrial Supply

1-2-3 11-Hole Matched Accuracy Parallel Blocks, 40Cr Steel Specification: Hole: 11 Size: 1 x 2 x 3 Material: 40Cr Steel Hardness: HRC55-60 Squareness: 0.0001/1 Tolerance of Size: ±0.0001 Thread Holes: 5/16-18 Untapped Holes: 12.7mm and 8.7mm Features: With 5 threaded holes (5/16-18) for bolting, drilling, hammering or other purposes This is a set of 123 parallel blocks containing two that you can use to assemble into other shapes The parallel blocks are packed in cartons with a layer of rust-proof wax paper, which is easy to clean and has a good surface finish Accuracy machine block milling machine, very suitable for machinists, woodworking, metal working work, accurate and easy to clean Package Includes: 2 x 123 Accuracy Parallel Blocks Note: Do not store them in a humid environment, even if you do not use them, you should brush them regularly to prevent rust Material: Made of 40Cr steel, which is an alloy steel with good comprehensive mechanical properties and is currently one of the most widely used steels in the machinery manufacturing industry The 5 threaded holes are 5/16-18 in size, and the other holes are divided into large holes and small holes with diameters of 12.7mm and 8.7mm respectively Feature: Accuracy grade tool steel was quenched and ground on all six sides of the block Design: Through hole design, the two faces are not the same size