Studio view of the black Bosch HDG234 2-3/4 inch diamond grit hole saw featuring a segmented cutting rim and quick change adapter.
Side profile of the diamond grit hole saw displaying the Bosch logo, side ejection slots, and the segmented diamond cutting edge.
Graphic titled Best For Cutting Natural Stone displaying a polished marble slab on a pedestal, listing applications like Tile, Porcelain, and Marble.
A worker uses a cordless drill equipped with the black diamond hole saw to cut a hole in a large beige tile wall for plumbing pipes.
Close-up of a cordless drill with a small diameter diamond bit next to bathroom fixture hardware on a tiled countertop.
Studio view of the black Bosch HDG234 2-3/4 inch diamond grit hole saw featuring a segmented cutting rim and quick change adapter.
Side profile of the diamond grit hole saw displaying the Bosch logo, side ejection slots, and the segmented diamond cutting edge.
Graphic titled Best For Cutting Natural Stone displaying a polished marble slab on a pedestal, listing applications like Tile, Porcelain, and Marble.
A worker uses a cordless drill equipped with the black diamond hole saw to cut a hole in a large beige tile wall for plumbing pipes.
Close-up of a cordless drill with a small diameter diamond bit next to bathroom fixture hardware on a tiled countertop.
BOSCH

Bosch HDG234 2-3/4 Inch Diamond Grit Hole Saw Vacuum Brazed for Porcelain Granite Glass and Tile Wet Cutting

In stock
SKU: HDG234
$38.77 USD

Description

PROFESSIONAL PRECISION FOR THE HARDEST MATERIALS

Achieve clean, chip-free cuts in the toughest surfaces with the Bosch HDG234 2-3/4 Inch Diamond Grit Hole Saw. Designed for professional tile installers, plumbers, and remodelers, this hole saw features premium vacuum-brazed diamond technology. Unlike standard masonry bits, the diamond grit edge effectively grinds through dense materials like porcelain, granite, slate, glass, and high-PEI ceramic tile without cracking the workpiece. This ensures a flawless finish for plumbing fixtures, electrical rough-ins, and countertop installations.

Engineered for speed and longevity, the HDG234 utilizes a segmented tooth design that reduces friction and dissipates heat—the primary enemy of diamond tooling. The integrated side slots allow for rapid plug removal, keeping your workflow efficient. As part of the Bosch Quick Change™ Universal Hole Saw System, this saw allows you to switch sizes in seconds when used with compatible mandrels. Please note that this accessory is designed exclusively for wet sawing applications to preserve the diamond life and requires a GFCI-protected circuit for operator safety.

Key Features

  • Vacuum-Brazed Diamond Grit: Premium bonding technology delivers faster cutting speeds and extended life in abrasive materials.
  • Hard Material Specialist: Specifically designed for drilling porcelain, granite, glass, marble, and ceramic tile.
  • Segmented Teeth: Strategic gaps in the rim reduce heat buildup and aid in debris removal for cooler cutting.
  • Quick Change Ready: Compatible with Bosch’s universal mandrel system for tool-free accessory changes (mandrel sold separately).
  • Easy Plug Removal: Large side slots allow for quick leverage to eject material cores.
  • Wet Cut Only: Must be used with water cooling to maximize performance and safety.

What's Included

(1) 2-3/4 Inch Diamond Grit Hole Saw

Specifications

Manufacturer Bosch
Model Number HDG234
Diameter 2-3/4 in. (70mm)
Cutting Depth 1-1/2 in.
Overall Length 2.95 in.
Cutting Edge Material Diamond Grit
Application Porcelain, Granite, Glass, Tile
Usage Wet Cutting Only
System Compatibility Quick Change™ Universal
Package Quantity 1

Pro-Tip: Because diamond hole saws do not typically use a pilot bit (to avoid cracking the tile), starting the hole can be tricky. Begin by holding your drill at a 45-degree angle to the surface. Gently "score" the tile to create a half-moon groove. Once the groove is established, slowly tilt the drill upright to 90 degrees while keeping the surface wet to complete the cut.