Straight shank Core Drills

Straight shank core drills are made of high-speed steel HSS, with 3 flutes and with nominal size in tolerance H 11 or with dimenssion reduced of material allowance for another accurate working. Thanks to Tool rigid construction it can be used for working of prebored holes, cast holes or punched holes. Three flutes execution increases the accuracy of the hole working, especially the roundnes. Made according to DIN 344 in range O 4,80 ÷ 16 mm in tolerances H8 - H11