
Diamond Drill Bit, Hole Saw Drill Accessory Set for Cutting Glass/Tile/Ceramic/Marble/Porcelain, Core Drill Cutter with Carbon 8 Stainless Steel -50mm 10 High Quality Pieces Diamond drill bits with economical fast cutting surface. Made of high strength carbon steel plated. Nickel makes these drill bits durable and precise; The bit tip head is made of 80 grit diamond coating which is uniform; it helps a lot to increase drilling speed and is sharper than other ordinary saws. 10 pieces mainly used size. Includes the following diameters: 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 20mm, 22mm, 25mm, 50mm; '; Laser marking makes the size meet most of your different needs. Application Suitable for use in a drill hole. on glass, marble, tile, glass block, fiberglass, porcelain and ceramic tile, Blva0299 slate, light stone granite, etc. It works with all electric drills and hammer drills. Beautiful design of the holes in the center and side. Holes help remove waste material easily; and the nickel