Silverline 598433 Heavy Duty Alloy Steel Diamond Core Drill Bit 91 x 150 mm Stayclean cut with the high-performance Silverline Diamond Core Drill Bit, for dry cutting of smooth and accurate holes in masonry. Designed and manufactured to remove cylinders or plugs of material, this accessory will help you economise on material and eliminate waste, creating holes which wont need repairing or making good by a bricklayer or plasterer. Equipped with a safety clutch, this Diamond Core Drill Bit is exactly what is needed for drilling in hard materials such as concrete block, paving slabs, limestone, clay brick and aerated block. The heavy-duty steel body construction makes it hard-wearing and long-lasting, eliminating the worry of snapping and breakage. The diamond dust cutting segments create burr-free holes with minimum waste, dust and debris. Features: Heavy-duty steel construction Ideal for drilling in hard abrasive materials such as concrete block, paving slabs, limestone, clay brick and aerated block Diamond dust cutting segments create ultra-precise holes to your exact specifications For use with ½” BSP compatible arbours and drills equipped with a safety clutch Compatible with Silverline arbour and guide drill Specifications: Finish: Painted Hardened: Yes Material Tip: Segment - alloy with diamond grit, 20% Product Weight: 1.154kg Teeth / Segment Size: 5 Teeth - 8.5mm x 4.0mm x 24.0mm Method of Construction: Extruded, milled, ground, sintered Abrasive Connection: Sintered Package Includes: Silverline Diamond Core Drill Bit 91 x 150 mm