Description of ACTINTOOL Threaded Welded Diamond Concrete
Laser Welded Diamond Drilling Core Bits. Designed for drilling hard granite, marble, engineering stone, concrete, brick. Diameter:1" (2.5cm),1-1/4" (3.2cm), 1-3/8"(3.5cm);Tube length: 4";Thread: 5/8"-11. Fit with angle grinder.If you fit them on drill or other machine, you need an adapter, such as SDS, hex, Round plus shank. Dry or Wet Drilling - use wet will greatly prolong the segment life; For dry drilling, please add lubricants frequently to enhance the working life. The max drilling depth is 50mm/2 inch. If drill deeper than the position of vacuum brazed coating on the wall of tube, the product will wear out.Recomended speed 3000- 4500 RPM,Maximum speed for the bits are 4500 RPM.