10 Piece Diamond Core Set Features: This 10 piece Diamond Core set it suitable for cutting, Granite, marble, limestone, slate, hard bricks and other dense and non-abrasive materials. Encompasses the industries most popular core sizes to suit Electricians, Plumbers and other major trades Laser welded diamond cores are designed for fast and easy drilling, in the most demanding of situations. Trade quality and fully compatible with Makita, Dewalt, Bosch and Milwaukee core drills Kit contains: 38, 52, 65, 117 and 127mm Cores ideal for common industry construction jobs such as coring for boiler flues, soil stacks, air vents, ventilation and either industrial 5Inch pipe. Includes 5 x Core Drills 5 x Accessories 1 x Aluminium carry case with foam insert 1 X 115MM Diamond Blade