Taper shank Core Drills

Taper Shan Core drills are made from high-speed steel - HSS. Execution with 4 or 3 flutes with nominal size in tolerance H 11 or H8 with dimension reduced of material allowance for more accurate working. Core drills are used for Working of prebored holes, cast holes or punched holes to higher precision of holes. DIN 222 Range: O 9,80 ÷ 32H11 mm - Tolerance H11 DIN 343 Range: O 8,80 ÷ 50,00 mm - Tolerance H8, H11