PRO 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 10mm brazed segmenteds for wet and dry drilling. Special soft bound for use in harder materials or for high speed drillings. We are able to manufacture to your specification diamond core drill bits from 10 - 1000mm Diameter ½″ BSP and 1 ¼” UNC thread, in a variety of lengths with segments available for reinforced concrete, asphalt and brickwork; we also offer a brilliant re-tipping service. Core drill bits are specifically designed for cutting precise circular holes in most construction materials like brick, stone, concrete and masonry. Made from steel, the diamond core drill bit comes in many lengths and has various sized teeth depending on the material and cutting requirement. A core bit (Fig. 1, Fig. 2) is a drilling tool with a hole through the center that removes sediment rock and allows the core pedestal to pass through the bit and into the core barrel. A 220 V core drill of 2000 W will do well for coring less than 500 mm, however, it is better to turn to a core drill at 380 V of at least 4000 W for deep core drilling. You can use a drilling bit to make a hole or you can use a core bit to remove a core of glass and leave a hole. The difference is that a drill bit will create the hole size that it advertises, but the core bit will create a circle of glass in the size that it advertizes.