Diamond Brazed Core Bits with Drill Shank

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Diamond Brazed Core Bits with Drill Shank for drilling granite & marble, masonry, concrete, tile/ceramic, porcelain, glass, hard plastic Diameter 6mm, 8mm, 10mm, 12mm, Quick-fit Sh ank; Diamond length 10mm Feature: 1. Wax inside for cooling, Dry drilling without water 2. Very high efficiency, multi-purpose drilling 3. Vacuum Brazed technology and high-quality diamond grains provide highly efficient working and long-time performance 4. Alternatively place the drill at a 45-degree angle. Drill until the drill bit starts to penetrate the material and then bring the drill up into the upright position and continue. 5. Ensure all the forms of percussion or hammer action are turned off. Show more