14pcs 70mm

Description: 14pcs 3-70mm Diamond Hole Saw Tile Ceramic Glass Porcelain Marble Drill Bits Set   Specifications: Material: Diamonds Shank Diameter: About 5-8mm Length: 50mm/1.96" Drilling Size: 3/5/6/8/10/12/16/18/20/30/40/50/60/70mm Quantity: 14Pcs   Features: --This diamond coated core drill bit removes a complete circle from glass, tiles, marble, granite, ceramic or other materials and only needs water for lubrication. --Always use lubrication (water), otherwise the diamond core drill will burn. --Can be used with a standard electric drill. --Start your hole diagonally, make a round trace and then hold drill straight.   -Instructions for use: 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. Glass drilling device is installed in the use of ordinary hand drill (electric drill to speed better), because this hole is not the central positioning of the drill bit, be careful when operating, let the hole at a slow slow access to glass Useless side of the hole out of a crescent, and then put a bit is used to locate the crescent, so you can successfully complete the hole operation. 4. Note that when the hole in the speed can not be too fast, must be slow, in the process of opening the hole must be added water cooling device.   Package Included: 1 Set x Diamond Tile Hole Saw(14Pcs)   Notice: 1.Please allow a bit error due to manual measurement. Pls make sure you do not mind before you bid. 2.The color may have different as the difference display, pls understand.   More Details: