SHDIATOOL Diamond Core Drill Bits for Hard Stone Concrete Marble Granite Brick Laser Welded Dry or Wet Hole Saws

Brand: SHDIATOOL

Features:

• 4"(102mm) Laser Welded Diamond Dry Drilling Core Bits.
• Dry or Wet Drilling - use wet will greatly prolong the segment life
• Designed for drilling hard granite, marble, engineering stone, concrete, brick
• Easily operate on Angle Grinder; Need an adapter for drill or other machine, such as SDS,hex,Round plus shank
• Hand Polishing job or recovering scratches on a wide range of material, they are ideal for polishing granite, marble glass and concrete any where