Oct 12, 2020
Bosch 4mm x 75mm hss-co twist drill bit manufactured from high speed steel to din 338. Two-cutter, cylindrical, two-fluted, right hand cutting twist drill bit, type n, 135° drill bit tip, split point manufactured to din 1412 c. These precision drill bits are recommended for use in drill stands or in a pillar drill. Size: 4mm diameter x 75mm overall length with 43mm working length. Pack of 2.