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50mm (2") Diamond Hole Saw Bit For Electric Drills

The Calidad 50mm (2") Diamond Hole Saw is an essential tool for professionals and DIY enthusiasts who need to drill precise, clean holes in hard surfaces with minimal effort. Designed to work seamlessly with electric drills, this hole saw combines high-speed drilling capabilities with a long lifespan, thanks to its vacuum brazed diamond technology. It offers an economical yet highly effective solution for creating holes in a variety of dense materials, ensuring smooth cuts with minimal chipping.
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  • Description
  • Applications
  • Use-Cases
  • Tech Specs

Effortlessly create holes in solid surfaces: countertops, baths/shower walls, shower, and tub decks.

Our diamond hole saw bit is specially engineered for the purpose of high-speed drilling, hole making, and a long lifespan. The vacuum-brazed diamond side protection offers a smooth and clean cut with minimal chipping. This is a more economical version of the diamond drill bit, but it does a great job. 

Calidad high-speed dry/wet diamond core bits are the most effective solution for drilling holes in countertops, bath/shower walls for faucets, handles, and soap dispensers. They easily tackle tough jobs on dense materials like tile, engineered stone, granite, and other surfaces. High-grade diamonds are brazed firmly on the tool, so the hole saw bores through hard substances and stays on the intended cutline without the need for a pilot drill bit.

Tile, Engineered stone, Granite, other dense materials

Drilling holes in countertops for faucets, soap dispensers, and other fixtures.


Creating openings in bath and shower walls for plumbing and accessories.


Making precise cuts in shower and tub decks for installation and retrofitting projects

  • Technology: Vacuum Brazed Diamond for high-speed drilling

  • Hole Dimension: 2 inches / 50mm

  • Average Lifespan: Capable of drilling 50-60 holes

  • Diamond coating for enhanced drilling speed

  • Depth marks for precise drilling

  • Designed for dry drilling, with wax lubricant inside and optional water cooling