Nxtop Pack of 10? Diamond Drill Bits - Glass and Tile Hollow Core Drill Bits Extractor Remover Tools Hole Saws for glass, ceramics, porcelain, ceramic tile

Diamond Drill Bits, are also know as Diamond Core Drill Bits, Diamond Hole Saws or Bonded Diamond Drill Bits. They are often called Glass Drill or Tile Drill, but they are much more versatile since they are used to drill glass, ceramics, porcelain, ceramic tile, porcelain tile, limestone, slate, marble, granite, light stone, and fiberglass. Description in details Material: steel Good Performance and long life. Excellent for making clean and accurate hole on glass and tile. Works better with a electric drill (Excluding in the item). Size(outside diameter): 6mm, 8mm, 10mm, 14mm, 16mm, 18mm, 22mm, 35mm. 40mm, 50mm. Total length: about 5.5cm Applicable Industry: Suitable for Stone, Tiles, Ceramics, Glass and Granite, etc Processing. Standard form & Use note 1.Start your hole diagonally, make a round trace and then hold drill straight. 2.Always use lubrication (water), otherwise the diamond core drill will burn. 3.Low drill pressure and increased use of water lubrication will extend drill bit life considerably. 4.Not for use on Concrete or for depths beyond about 1/2".