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.