6-12mm Vacuum Brazed Diamond Dry Drill Bits Hole Saw Cutter for Granite Marble Ceramic Tile Glass

Specification: ​ ​Hole dirll size: 6/8/10/12mm ​Material: Diamond ​ ​Shank: 6.35mm Hexagon Shank ​ ​Diamond Length: 10mm ​ ​With cooling wax ​ ​Application: ​ ​For drilling granite & marble, masonry, concrete, tile/ceramic, glass, hard plastic..... ​ ​Feature: ​ ​Wax inside for cooling, Dry drilling without water. ​ ​Very high efficiency, multi-purpose drilling. ​Long life drilling. ​ ​Attention: ​When using brazed diamond hole saw, the speed of the electric tool should not be lower than 2000 rpm/min, The faster the speed, the better the effect.the hole saw should not be pressed down very hard, otherwise it is easy to damage the hole saw. ​ ​Package Included: ​1 x Drill Bit