10-Pc Diamond Drill Bit Set 6–32mm | Glass Tile Marble Granite
10-Pc Diamond Drill Bit Set 6–32mm | Glass Tile Marble Granite
10-Piece Diamond Core Drill Bit Set – 6mm to 32mm
Tackle tough drilling projects with confidence using this professional-grade 10-piece diamond drill bit set. Engineered from high-speed steel with a precision diamond-coated tip, these core hole saw bits cut cleanly and accurately through the hardest materials. Whether you're a seasoned tradesperson or a passionate DIYer, this versatile set delivers consistent, professional results every time.
Made in Mainland China.
What You Can Drill Through
- Glass – standard glass, sea glass, beach glass, fused glass
- Stone & Minerals – stone, gemstones, rock, pebbles
- Ceramics & Tiles – ceramic, porcelain, glazed tiles, pottery, plates
- Natural Materials – shell, antler, bone, fossil
- Very Hard Wood – dense hardwood applications
- Marble & Granite – countertops, flooring, decorative stone
Complete 10-Size Set
Get the exact size you need every time — this set includes all the most commonly required diameters:
- 6mm (0.23")
- 8mm (0.31")
- 10mm (0.39")
- 12mm (0.47")
- 14mm (0.55")
- 16mm (0.62")
- 18mm (0.70")
- 22mm (0.86")
- 26mm (1.02")
- 32mm (1.26")
Key Features
- ✅ Diamond-Coated Tips – Maximum cutting efficiency on hard, brittle materials
- ✅ High-Speed Steel Construction – Durable, long-lasting performance across many uses
- ✅ 10 Sizes in One Set – 6mm to 32mm covers virtually any project requirement
- ✅ Precise Core Drilling – Clean, accurate holes with minimal chipping or cracking
- ✅ Universal Compatibility – Works with standard electric drills and drilling tools
- ✅ Great for DIY & Professional Use – Ideal for tiling, stone craft, glazing, lapidary work, and construction
Pro Tips for Best Results
For optimal performance and longer bit life, use water as a coolant while drilling. Apply steady, moderate pressure — let the diamond coating do the work. Start at a low speed to establish the hole, then gradually increase as needed.
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Learn more: OSHA on personal protective equipment
Frequently Asked Questions
Q: Are these diamond drill bits compatible with a standard electric drill?
A: Yes! These diamond core drill bits feature a standard shank that is compatible with most common electric drills and drilling tools. Simply secure the bit in your drill chuck and you're ready to go.
Q: Do I need to use water when drilling glass or tile with these bits?
A: Using water as a coolant is strongly recommended when drilling through glass, ceramic, marble, granite, or similar hard materials. Water keeps the diamond tip cool, reduces friction, and significantly extends the life of the drill bits while also helping to prevent material cracking.
Q: What is the full size range included in this 10-piece diamond drill bit set?
A: The set includes 10 different sizes: 6mm, 8mm, 10mm, 12mm, 14mm, 16mm, 18mm, 22mm, 26mm, and 32mm — giving you a comprehensive range for any home renovation, crafting, tiling, or stone-drilling project.
Q: Can these drill bits be used on marble and granite countertops?
A: Absolutely. The diamond-coated core drill bits are specifically designed for hard stone surfaces including marble and granite, making them an excellent choice for countertop installations, sink cutouts, and decorative stone work.
Production & Packaging Notice
To maintain high stock availability and fast shipping times, our items are sourced from multiple verified manufacturing facilities. While the core quality, materials, and product specifications remain identical, you may notice slight variations in the packaging design, manufacturing origin, or the wording of the printed instructions.