Uxcell Brazed Diamond Core Drill Bits with Arbor Adapter for Tile Marble Stone 20mm

Uxcell 20mm Brazed Diamond Core Drill Bits with M10 Arbor Adapter for Tile Marble Stone

1. Diamond grains are permanently brazed to the cutting edge. Provide high efficiency, fast and smooth drilling, but also ensure longer working life. Used on M10 angle grinders, easy to operate.
2. Suitable for drilling porcelain, tile, marble, stone, masonry, brick, glass. Can be dry or wet use. It is recommended to be used with water for cooling and lubrication to prolong the using life and increase the performance.
3. Large clearance hole facilitates entrance of cooling water and escape of chips and other particles from drilling. Creates a precision and smooth cut, less chipping and minimizing breakage.
4. Arbor adapter converts M10 thread to 3/8-inch (9.5mm) triangle shank. Fits most bench drills, hand electric drills. Tips: Reduced drill speeds, low drill pressure and increased use of water lubrication will extend drill bit life considerably.