SHDIATOOL Diamond Core Drill Bits 1-1/4-Inch for Hard Stone Concrete Marble Granite and Dry Diamond Polishing Pads 4 Inch

1pc 1-1/4"(32mm) Laser Welded Diamond Dry Drilling Core Bits and 7pcs/set Diamond Flexible Dry polishing pad, plus 1pc Aluminum Backer with 5/8"-11 Thread.

• 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
• Dry or Wet Drilling - use wet will greatly prolong the segment life
• Flexible, suitable for different shape polishing For granite, marble and all similar stone material polishing
• The drill bit is Easily operate on Angle Grinder; Need an adapter for drill or other machine, such as SDS,hex,Round plus shank