Teronbeta Diamond Core Drill Bit, M14 Vacuum Brazed Diamond Core Hole Cutter for Tile Porcelain Ceramic Granite Marble,and for Angle Grinder (55mm)

• Superior Diamond Drill Bits: Made of high quality diamond grits with vacuum brazed technology to imporve the performance and service life.
• Fast and Efficiently: Thicken and uniform diamond coated and Special U-groove tooth make the diamond sharpness and fast chips removal, provide a efficiently and smoothly drilling.
• Durability: Vacuum brazed technology make the diamond grits particles well attach to the core steel and increases resistance the high temperature and friction.
• Compatibility: Suitable for angle grinders with M14 threaded spindle, Great for drilling holes through porcelain, tile, ceramics, marble, granite. use water to keep it cooling will be prolong the service life time.
• Instructions: Start drilling at a 45-degree angle, and drill vertically when the crescent-shaped edge is cut to avoid the hole saw from slipping. Clockwise oscillation while drilling makes it easy to remove chips and improves drilling efficiency. Recommend 6000 - 8000 RPM, Max 11000 RPM.

Teronbeta M14 Diamond Core Drill Bit Drilling a clean hole in tiles, marble, porcelain and ceramic etc. Wide range of diameters are available to meet your daily needs. Thicken diamond coated provide a longer service life. Uniform diamond coated provide a superior performance. Special U-groove tooth design for remove chips faster. Specifications: Material: Diamond Diamond Coating Width: 15mm Diameter: 6mm-120mm： Max Drilling Depth: 40mm Adaptation Tool: Angle grinders with M14 threaded spindle Caution: siutable drilling holes in tiles, marble, granite, ceramic, don't drilling other materials If you smell burning, back off! Use water or wait for the drill bit to cool down before continuing to drill. Can be used with a standard electric drill with a M14 thread adapter. Place the drill at a 45 degree angle to make a half round mark and then drilling vertical. Reduced drill speeds, low drill pressure and increased use of water lubrication will extend drill bit life considerably. The general rule is the smaller the diameter of drill bit to matching higher RPMs. the bigger diameter of drill bit to matching lower RPMs.