15Pcs 6mm-50mm/10Pcs 8-50mm/10Pcs 6-30mm Diamond Coated Holesaw Drill Bit Cutter Core Shaft Tool Kit
features:<br>--100% and high quality.<br>--this diamond coated core drill bit removes a complete circleglass, tiles, marble, granite, ceramic or other.<br>--materials and only needs water for lubrication.<br>--always use lubrication water, otherwise the diamond core drill will burn.<br>--can be used with a standard electric drill.<br>--start your hole diagonally, make a round trace and then hold drill straight.<br><br>specifications:<br>size: 6/8/10/12/14/16/18/20/22/25/26/28/30/40/50mm<br>0.23/0.31/0.39/0.47/0.55/0.62/0.7/0.78/0.86/0.98/1.02/1.10/1.18/1.57/1.97"<br>quantity: 15 pcs<br><br>packaged included:<br>1 x 15pcs diamond coated hole saw drill bits