Dry Diamond Drill Bit - BGTEC 2pcs 28mm Hole Saw for Granite,Marble,Masonry, Concrete, Tile/Ceramic, Glass, Hard plastic,Vacuum Brazed Diamond Core Drill Bit Kit

• 【Size】2 pieces dry diamond drill bits (28mm).Total Length 65mm,Diamond height 10mm,Max working depth 30mm,Diameter 28mm,Round shank,Grit #40/45
• 【Application】For Porcelain,Granite, Tile, Ceramic, Marble, Stone, Masonry. Use water for longer time.
• 【Chip removal design】Specially designed holes on both sides of the drill for fast chip removal and drilling efficiency
• 【Vacuum Brazed technology】 Higher efficiency, faster working speed, longer service life.
• 【Note】Used for hand drill and bench drill,Hand drill at 2000-5000RPM, the slower the shorter the life.

Product Name: Round Shank Vacuum Brazed Diamond Dry Drill Bit Color: orange. Application: Brazed diamond drill bits, dry drilling for stone, masonry.... Features: Round shank, available diameter 6mm, 8mm, 10mm, 12mm, diamond length 10mm Application: For drilling granite and marble, masonry, concrete, tile/ceramic, glass, hard plastic..... Features: 1. Wax inside for cooling, dry drilling. 2. Vacuum brazed diamond technology provides very high efficiency, versatile drilling. 3. Long life drilling