Countersink Drill Bits Set 12PCS, 1/4" Hex, Adjustable Depth Stop
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- 【Dual-Flute Design】Forget rough holes. Our two-flute design cuts effortlessly for chatter-free, professional finishes in wood. It's faster than single-blade alternatives
- 【Complete 12-Pc Set 】Get everything you need: 5 countersink bits (#4, #6, #8, #10, #12), 5 drill bits, a magnetic extension, and a hex wrench. All stored in a sturdy case
- 【Titanium Strength】Built to Last. Made from durable titanium-coated high-speed steel. These countersink drill bits handle various woods with ease. For extended longevity, we recommend intermittent use on very hardwoods
- 【All-in-One Operation】Save time. Create clean pilot holes and perfect 82° countersinks in one step for a flush screw fit. Maximize your efficiency
- 【Universal 1/4" Hex Shank】Works with your impact driver, drill driver, or press. This counter sink drill bit for wood is a versatile addition to any toolkit
Estimated shipping
Select a product to estimate shipping.The OSTTE 12-Piece Countersink Drill Bit Set is a comprehensive tool for creating precise holes and countersinks in wood, designed to streamline your woodworking projects. This set provides everything you need for efficient and professional results.
Key Highlights
- Smooth, Clean Holes: The dual-flute design minimizes chatter, delivering a smoother, more professional finish compared to single-blade bits.
- Complete Set: Includes 5 countersink bits in sizes #4 through #12, plus 5 drill bits, a magnetic extension, and a hex wrench – everything you need in one package.
- Durable Construction: Crafted from titanium-coated high-speed steel, these bits are built to withstand regular use and provide long-lasting performance.
- One-Step Efficiency: Create both pilot holes and 82-degree countersinks simultaneously for a flush screw fit, saving you time and effort.
- Versatile Compatibility: The 1/4" hex shank works with a wide range of impact drivers, drill drivers, and press tools.
Useful Facts
- Brand: OSTTE
- Sizes: #4, #6, #8, #10, #12
- Material: 4341HSS with Titanium Coating
- Cutting Angle: 82 degrees
- Flutes: 2
- Includes: Magnetic extension & hex key
Good Fit For
- Woodworking projects of all sizes
- DIY enthusiasts and hobbyists
- Professional carpenters and tradespeople
- Anyone needing precise hole creation and countersinking
Product details







| Main Specification | |
|---|---|
| Manufacturer | OSTTE |
| Unit Count | 12 Count |
| Surface Recommendation | Wood |
| Brand | OSTTE |
| Cutting Angle String | 82 degrees |
| Number of Pieces | 12 |
| Product information | |
| Number of Packs | 1 |
| Set Name | OSTTE 12-Piece Countersink Drill Bit Set |
| Technical Details | |
| Part Number | 12CKZNEW-GRFBAUS |
| Number of Flutes | 2 |
| Style | |
| Finish Types | Titanium |
| Others | |
| Item Highlight | #8 or #10 or #6 or #12 or Sizes: #4 or 4341HSS or Magnetic extension & hex key or Countersink for wood or Includes a set of spare drill bits |
| Product Type | Countersink Drill Bits |





