Diamond Core Drill Bit 2-1/2Inch, Stone Hole Saw for 5/8-11 Angle Grinder

• Premium Vacuum Brazed Diamond – Fast, clean drilling with reduced edge chipping and longer tool life.
• Thin-Wall Design – Reduces cutting resistance for smoother control and faster drilling.
• Cooling Slots & Side Protection – Cooling slots improve slurry removal, while four vacuum brazed side protection segments reduce side friction and protect the barrel.
• 2-Inch Drilling Depth – Ideal for countertop fabrication, plumbing openings and other stone drilling applications.
• Wet or Dry Drilling – Fits standard 5/8”-11 angle grinders, with wet drilling recommended for the best performance and longest tool life.
  

KIPMONT Diamond Core Drill Bits are designed for fast, clean drilling in stone, tile and masonry materials. Built with premium vacuum brazed diamond technology, these stone hole saws deliver aggressive cutting performance on hard materials while producing clean, smooth holes with reduced edge chipping.

Made for porcelain tile, ceramic tile, granite, marble, quartz, concrete, engineered stone and masonry, they are ideal for countertop fabrication, faucet holes, pipe holes, electrical pass-throughs, tile installation, kitchen and bathroom remodeling, and general construction work. Designed for stone fabricators, countertop installers, tile contractors, plumbers, electricians, contractors, remodelers and serious DIY users, these core bits perform equally well in both shop fabrication and on-site installation.

The thin-wall barrel reduces cutting resistance for faster drilling, smoother control and improved efficiency. Every size provides a 2-inch drilling depth, making these core bits suitable for most countertop slabs, vanity tops, tile walls and common stone fabrication applications. Sizes 3/4 inch and larger feature cooling slots for improved slurry removal and heat dissipation, along with four vacuum brazed side protection segments—two inner and two outer—to help protect the steel barrel, reduce side friction and produce cleaner, smoother hole walls.

How to Use: Securely mount the core bit onto a 5/8”-11 angle grinder before drilling. Wet drilling is recommended whenever possible to reduce heat, minimize dust and extend tool life. For the best accuracy, use a drilling guide or template whenever possible. For freehand drilling, start at about a 45-degree angle to create a shallow groove, then gradually bring the bit upright to 90 degrees. Apply light, steady pressure and let the diamond do the work. Do not force the bit.

Always wear appropriate personal protective equipment, including safety glasses, gloves and a dust mask.