Clean 90° Countersinking in Seconds
Easily remove burrs, clear wood chips, and create perfectly smooth 90-degree countersunk edges with minimal effort.
5-Flute Clean Cutting Design
The specialized 5-flute cutting layout provides clean swarf removal and efficient hole cleaning. By evenly distributing cutting forces, it shapes smooth, 90-degree chamfered edges so screws can sit completely flush with the surface.
Universal 1/4" Hex Shank
Equipped with a standard 1/4 inch (6.35 mm) hex shank, these bits fit securely into most common hand drills and impact drivers. Enjoy quick plug-and-play installation and robust slip resistance during heavy-duty rotational tasks.
Durable Carbon Steel Build
Forged from high-quality carbon steel combined with a protective dark titanium coating, this set delivers high wear resistance and structural longevity, maintaining cutting performance through consistent DIY operations.
Pro Tip: For the cleanest finish and to prevent burning the wood, use at a lower drill speed. (专业建议：为了获得最干净的切面并防止烧焦木材，请使用较低的电钻转速。)
Specifications
| 1/4 inch (6.35 mm) hex shank |
| 90 Degrees |
| Ø12 mm (0.47"), Ø16 mm (0.63"), Ø19 mm (0.75") |
| #12: Approx. 49 mm (1.93") #16 & #19: Approx. 50 mm (1.97") |
| #12: Approx. 23 mm (0.91") #16 & #19: Approx. 27 mm (1.06") |
| 5-Flute design |
| High-quality Carbon Steel |
| Dark Titanium Coating (Dual-tone Silver & Black) |
| Wood, PVC, and Plastics |
| Metal or high-hardness materials |
Frequently Asked Questions
What materials can this countersink drill bit be used on?
It is suitable for wood, PVC, and plastic. It helps create smoother screw holes, remove burrs, and make cleaner 90° chamfered edges for everyday workshop projects.
Will these bits fit into my standard home drill?
Yes. These bits are engineered with a standard 1/4 inch (6.35 mm) hex shank, making them widely compatible with most standard hand drills, impact drivers, and quick-change drill chucks.
Which sizes are included in this tool set?
The set features three of the most commonly used diameters: 12 mm (Ø12), 16 mm (Ø16), and 19 mm (Ø19), allowing you to chamfer holes for different sizes of flush screws.