9 Pcs Dry Diamond Drill Bit Set, Sizes 1/4" 5/16" 3/8" 1/2"
- 9-Piece Dry Diamond Drill Bits Kit: This comprehensive kit offers 9 high-quality tile drill bits in various sizes: 2 × 6mm (1/4 inch), 2 × 8mm (5/16 inch), 2 × 10mm (3/8 inch), 2 × 12mm (1/2 inch) diamond drills, and 1 × 6mm tungsten carbide drills, which will satisfy your flexible use in different drilling needs
- Efficient Dry Drilling, no water required: The ceramic drill bit is equipped with solid cooling wax, which can effectively reduce cutting temperature without adding water. Combined with the guiding action of the carbide bits, this ensures precise and stable drilling results, say goodbye to cracks and chips, extended bits life
- Durable Glass Drill Bit: This diamond drill bit is made of strong diamond particles through precise brazing technology, high hardness, sharpness and durability, its side-cutting edge design can quickly remove debris, depth marking to ensure accurate drilling, round shank design is compatible with electric drills, angle grinders
- Where to Use Diamond Drill Bits:Designed to drill clean and precise holes in hard materials, this diamond drill bit set is ideal for tiles, porcelain floors, granite, ceramics, glass, mirrors, marble, Quartz stone, and Jade, (not suitable for cement, metal, tempered glass, wood, or plastic)
- Tips for Using Diamond Hole Saw:Adjust the drill to a 45-degree bevel and lean lightly on the tile. After cutting crescent grooves at high speed, slowly perpendicularize the drill to make holes and increase the drilling speed while gently shaking to remove chips. Note: Use high power drills (>2000 rpm), carbide bits for initial drilling only, diamond bits for subsequent use
Estimated shipping
Select a product to estimate shipping.The Comfylichi 9-Piece Dry Diamond Drill Bit Set is a versatile toolset designed for tackling tough drilling projects on glass, granite, ceramic, and quartz. This kit provides a range of sizes to suit various needs, offering efficient and precise results without the need for water.
Key Highlights
- Efficient Dry Drilling: Utilizes a cooling wax system to reduce cutting temperatures, preventing overheating and extending bit life.
- Durable Diamond Construction: Crafted with strong diamond particles and tungsten carbide, ensuring exceptional hardness, sharpness, and longevity.
- Precise Drilling: Side-cutting edge design quickly removes debris for accurate and controlled drilling.
- Versatile Sizes: Includes drill bits in 1/4", 5/16", 3/8", and 1/2" diameters, covering a wide range of applications.
- Round Shank Design: Features a round shank with Ti+Tungsten Carbide Bit for compatibility with most drill types.
Useful Facts
- Material: Diamond, Tungsten Carbide
- Cutting Diameter: 1/4", 5/16", 3/8", 1/2" inches
- Brand: Comfylichi
- Set Name: Comfylichi 9 Piece Dry Diamond Drill Bits Set
- Unit Count: 9 Count
Good Fit For
- DIY home improvement projects
- Glass and tile installation
- Granite countertop repair
- Ceramic and quartz projects
Product details



Specifications
| Main Specification | |
|---|---|
| Surface Recommendation | Ceramic, Stone, Por, Tile |
| Cutting Diameter | 1/4, 5/16, 3/8, 1/2 inches |
| Material | Diamond, Tungsten Carbide |
| Manufacturer | Comfylichi |
| Unit Count | 9 Count |
| Point Style | Diamond Point |
| Shank Type | Round |
| Tool Flute Type | Straight |
| Brand | Comfylichi |
| Cutting Angle String | 45 degrees |
| Included Components | diamond drills 6/8/10/12mm |
| Number of Pieces | 9 |
| Finish Type | Diamond |
| Product information | |
|---|---|
| Set Name | Comfylichi 9 Piece Dry Diamond Drill Bits Set |
| Technical Details | |
|---|---|
| Part Number | 2 × 6mm, 2 × 8mm |
| Model | 2 × 6mm, 2 × 8mm |
| Material Type | Tungsten Carbide, Diamond |
| Number of Flutes | 3 |
| Style | |
|---|---|
| Finish Types | Diamond |
| Measurements | |
|---|---|
| Item Dimensions | 1 x 1 x 0.6 inches |
| Others | |
|---|---|
| Item Highlight | ceramic, Granite, for Glass, Built-in Solid Cooling Wax, Fast Dry Drilling, Round Shank with Ti+Tungsten Carbide Bit, Quartz |
| Product Type | Masonry Drill Bit Sets |
| Minimum Bore Diameter | 6 millimeters |
| Tags | |
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