5/6/8/10/12/14/16mm Diamond Coated Core Drill Durable For Glass Marble Granite Diamond Drill Bit Meal Drilling

Product Name: Vacuum brazed diamond round shank drill bitQuantity: 5 pieces/7 piecesConnection method: Round handleSand particles: # 50/60standard:Diameter: 5mm, 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, diamond height 10mm, total length 65mmApplication:Used for drilling granite and marble, bricks and stones, concrete, tiles/ceramics, glass, hard plastics. ....Features:1. Cool the wax, keep the drill bit cool and lubricated, and dry the drill hole without water;2. High quality diamond particles, fast and smooth drilling, providing better smoothness;3. Vacuum brazing diamond technology provides very high efficiency;4. The spiral groove design on the top of the drill bit helps with chip removal.