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)
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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.
