HFS(R) Ultra Precision 1-2-3" Blocks,Machinist Block Set 2pcs/Pair, 0.0001" with Screw in Plastic Case
Product description <br /><br /><br /><br />Size within +/- .0001" <br /><br />Flatness and parallelism within .0001" <br /><br />Accuracy and squareness on all sides within .0001"-.0002" <br /><br />Pairs are matched to a tolerance of 0.0002" <br /><br />Product application <br /><br /><br /><br />Used for set-up. layout and inspection jobs <br /><br />Product features <br /><br /><br /><br />Has 23 holes with 5 holes tap to 3/8-16 threads for clamping and 18 untapped holes <br /><br />Made of hardened tool steel and precision ground on all six sides <br /><br />Cross drilling design allows efficient use of lower weight with maximum strength <br /><br />Heat treat and hardness 56 to 60 RC <br /><br />2 pieces per set <br /><br />Weight: 2.1 Lbs