Bosch HDG218 2-1/8 Inch Diamond Grit Hole Saw Vacuum Brazed Quick Change for Tile Granite and Stone Wet Cutting

PROFESSIONAL PRECISION FOR THE HARDEST TILE AND STONE

Deliver clean, precise cuts in the toughest masonry materials with the Bosch HDG218 2-1/8 Inch Diamond Grit Hole Saw. Engineered for professional tile setters and stonemasons, this high-performance accessory features vacuum-brazed diamond technology that cuts faster and lasts significantly longer than standard grit saws. It is specifically designed to power through hard surfaces like porcelain, granite, slate, natural stone, and glass without chipping or cracking the finish. Whether you are installing bathroom fixtures or routing pipes through countertops, this saw ensures a smooth, high-quality result every time.

Efficiency is built into every aspect of the HDG218 design. The segmented teeth reduce friction and heat buildup while effectively clearing debris, preventing the bit from binding during operation. As part of the patented Bosch Quick Change™ Universal Hole Saw System, this saw allows you to switch between sizes or types in seconds using a compatible mandrel. Integrated side slots make removing material plugs quick and easy, minimizing downtime between cuts. Note: This tool is designed for wet sawing only and must be used with machines on a GFCI-protected circuit.

Key Features

• Vacuum-Brazed Technology: Fuses diamond grit to the steel body for superior durability and extended cutting life.
• Fast & Easy Starts: Precision rim design allows for accurate hole starting even on slick, hard materials.
• Segmented Teeth: Reduces heat and debris buildup for faster, cooler cutting in dense substrates.
• Quick Change Compatibility: Works with the Bosch Quick Change™ system for rapid, tool-free accessory swaps.
• Easy Plug Ejection: Side slots allow for fast removal of material cores to keep you working efficiently.
• Hard Material Specialist: Ideal for cutting porcelain, granite, marble, slate, glass, and ceramic tile.
• Wet Cut Only: Designed for use with water cooling to protect the diamonds and ensure cut quality.

What's Included

(1) 2-1/8 Inch Diamond Grit Hole Saw (Arbor/Mandrel Sold Separately)

Specifications

Pro-Tip: To prevent the bit from "walking" when starting a hole on smooth porcelain or granite, angle your drill at 45 degrees to the surface. Gently grind a crescent-shaped groove to establish a starting point, then slowly raise the drill to a vertical 90-degree position as you continue cutting. Always ensure a steady stream of water reaches the cut to prevent overheating.