Bosch Diamond Hole Saw HDG3 3 Inch Core Drill Bit (Vacuum Brazed Grit 3/8 Chuck Wet Cut Porcelain Tile Stone Masonry Power Tool Accessory)

In stock
SKU: HDG3
Regular price $47.29 USD
Regular price $66.29 USD Sale Sale price $47.29 USD

Bosch Promotional Logo Logout

Bosch HDG3 3-Inch Diamond Grit Wet Cut Tile and Stone Hole Saw Core Bit

The Bosch HDG3 3-inch diamond hole saw drills clean, chip-free core holes up to 1.5 inches deep in porcelain tile, granite, marble, and natural stone. Engineered with advanced vacuum-brazed diamond grit technology and integrated side slot windows for effortless plug removal, this 0.62-pound masonry accessory operates exclusively in wet cutting environments to prevent thermal degradation. Outfitted with a standard 3/8-inch chuck compatible shank and a quick-change interface, it equips tile installers, bathroom remodelers, and stone fabricators with precise core-drilling performance.

Best Used For:

  • Porcelain and Granite Tile Plumbing Installation: Bores clean, perfectly round holes through thick porcelain tile and granite countertops for water supply lines and drain pipes.
  • Bathroom and Kitchen Renovation Core Drilling: Piercing stubborn natural stone slabs, marble, and slate to install shower valves and plumbing fixtures.
  • Electrical Conduit and Drainage Pass-Throughs: Routing heavy electrical lines and utility drainage pipes through dense stone masonry.

Key Performance & Safety Features

  • Vacuum-Brazed Diamond Grit: Industrial diamond particles fused under high heat deliver lightning-fast material penetration and extended tool lifespan.
  • Effortless Plug Removal Slots: Built-in side window slots allow immediate manual levering and extraction of dense stone material plugs.
  • Quick-Change Shank Interface: Universal shaft geometry snaps rapidly into standard rapid-release mandrels and power drill chucks.
  • Optimized Wet-Cutting Rim Design: Segmented diamond edge requires continuous water cooling to flush away slurry and prevent thermal overheating.
  • Standard 3/8-Inch Chuck Compatibility: Mounts securely into ordinary handheld power drills and heavy-duty commercial drill presses.

What's Included

  • (1) Bosch 3-Inch Diamond Quick-Change Hole Saw Core Bit (HDG3)

Technical Specifications

Manufacturer Robert Bosch Tool Corporation
Model Number HDG3
Product Classification Diamond Hole Saw Core Drill Bit
Cutting Hole Diameter 3.00 inches (3 in / 76.2 mm)
Maximum Drilling Depth 1.50 inches (1-1/2 in / 38.1 mm)
Overall Tool Length 2.375 inches (2-3/8 in / 60.33 mm)
Minimum Chuck Requirement 0.375 inches (3/8 in Drill Chuck)
Cutting Tip Material Vacuum-Brazed Diamond Coated Steel
Edge Profile Design Continuous Diamond Grit Segmented Edge
Required Application Method Wet Sawing Only (GFCI Protected Circuit)
Net Product Weight 0.62 lbs (0.28 kg)
Target Substrates Porcelain, Granite, Marble, Slate, & Masonry

Pro-Tip: When drilling hard porcelain tile or granite with a diamond hole saw, start your cut at a 45-degree angle to establish a smooth groove before gently tilting the power drill upright; this prevents the bit from walking across the slippery tile surface.