Crosstar 8Pcs Cobalt Countersink Drill Bit Set, 1/4"-3/4", 1/4" Hex Shank
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- 🔩【Industrial-Grade Cobalt HSS】Crafted from M35 cobalt high-speed steel, these countersink drill bits offer superior strength and heat resistance, ideal for drilling through tough materials like stainless steel, carbon steel, and iron. The added cobalt coating enhances durability and extends bit life.
- 🛡️【Titanium Aluminum Nitride Coating】Our drill bits are coated with Titanium Aluminum Nitride, which increases surface hardness to 94HRC and provides outstanding heat resistance. This coating ensures 10X longer lifespan than standard bits, allowing for faster cutting and consistent performance.
- 🌀【Efficient Five-Flute Design】The unique five-flute design ensures superior stability and efficient chip removal. This reduces friction and heat buildup, resulting in cleaner holes and extended bit life. Perfect for precise chamfering and countersinking in metal and wood.
- ⚙️【Quick-Change Hex Shank & Adapter】The 1/4" hex shank is compatible with quick-change chucks and drills. Included quick-change adapter allows for fast and easy bit swaps without stopping your work. The secure grip prevents slipping and increases productivity.
- 🧰【Complete Set with Center Punch】This 6-piece set includes the most popular sizes (1/4", 5/16", 3/8", 1/2", 5/8", 3/4") and a center punch for creating precise starter indentations. The laser-engraved sizes ensure easy identification and long-lasting readability.
Estimated shipping
Select a product to estimate shipping.The Crosstar 8-Piece Cobalt Countersink Drill Bit Set is a robust and reliable toolset designed for professionals and serious DIYers who need precise hole-making capabilities. These bits are built to handle demanding materials and provide consistent results, making them a valuable addition to any workshop.
Key Highlights
- Durable Construction: Crafted from M35 cobalt high-speed steel, these bits are exceptionally strong and resistant to heat, allowing them to cut through tough metals like stainless steel, carbon steel, and iron.
- Extended Bit Life: The Titanium Aluminum Nitride coating increases surface hardness and heat resistance, significantly extending the lifespan of the bits compared to standard countersink bits.
- Efficient Cutting: The five-flute design promotes rapid chip removal, reducing friction and heat buildup for cleaner holes and faster drilling.
- Quick and Easy Use: Features a 1/4" hex shank for compatibility with a wide range of drill drivers and easy bit changes.
Useful Facts
- Material: Cobalt High-Speed Steel (M35)
- Coating: Titanium Aluminum Nitride (94HRC hardness)
- Shank Type: 1/4" Hex
- Set Contents: 8 Pieces – Sizes 1/4" to 3/4"
- Weight: 1.39 pounds
Good Fit For
- Metalworking projects
- DIY home improvement tasks
- Automotive repair
- Woodworking (for creating chamfers and countersinks)
Product details
| Main Specification | |
|---|---|
| Colour | Black or Silver |
| Manufacturer | Crosstar |
| Brand | Crosstar |
| Item Package Quantity | 1 |
| Material | Cobalt HSS |
| Size | 8pcs Set |
| Item Weight | 1.39 pounds |
| Product information | |
| Package Dimensions | 10.04 x 6.77 x 1.85 inches |
| Item model number | CST-MTZ |
| Technical Details | |
| Part Number | CST-MTZ |
| Others | |
| Date First Available | 2025 or August 15 |
| Product Type | Countersink Drill Bits |