Norton PRO CB Beton Diamond Core Drill Bits Size:57mm 4 mm (1/4″) No Load

4 mm (1/4″) No Load Speed (RPM) 8

45°: 49 mm (1-15/16")

Double-ended PH2 design provides two usable screwdriver tips

four-stroke

Norton PRO CB Beton Diamond Core Drill Bits Size:57mm 4 mm (1/4″) No LoadPRO CB BETON SOFT LASER Discover Norton Core Bits especially designed for drilling. Reinforced concrete, cured concrete, kerb stones, concrete, pipes, engineering bricks, facing bricks, refractory bricks, flagstones and paving stones, block paving, washed gravel concrete slabs, natural stone, flint, sandstone, limestone. Useful length: 450mm Connection: 1 1 4" UNC female thread Applications: Concrete, Reinforced concrete and hard building materials