Laser Welded Diamond Dry Drilling Core Bits is designed for drilling hard granite, marble, engineering stone, concrete, brick. Ideal for drilling the faucet mounting holes in stone countertops, plumbing lines in showers and vanities
Diameter: 58mm(2 1/4 inch), Total length: 100MM, Thread: 5/8 inch-11. Dry or Wet Drilling - use wet will greatly prolong the segment life
High-Quality Diamond and Stong Steel Body extend drilling life and improve the working efficiency
Laser welded technology avoid segments off when dry working, provide stable drilling
Easily operate on Angle Grinder; Need an adapter for drill or other machine, such as SDS,hex,Round plus shank
