5-Piece Countersink Drill Bit Set for Wood – #5 to #12

5-Piece Countersink Drill Bit Set for Woodworking

Get perfectly flush, professional-looking screw holes every time with this versatile 5-Piece Countersink Drill Bit Set. Designed for woodworkers of all skill levels, this set lets you drill pilot holes and countersink in a single pass — no need to swap bits. Whether you're building furniture, cabinetry, decking, or DIY projects, these tapered chamfer bits deliver clean, precise results.

What's in the Set

This five-piece kit covers the most common wood screw sizes, so you're ready for virtually any project:

• #5 – 1.98mm (0.078") × 50mm length
• #6 – 2.38mm (0.094") × 55mm length
• #8 – 2.78mm (0.109") × 60mm length
• #10 – 3.175mm (0.125") × 63mm length
• #12 – 3.56mm (0.140") × 65mm length

Key Features

• Drill & countersink in one step – no bit changes needed, saving you time on every hole
• Adjustable depth – simply loosen the setscrew with the included Allen wrench to set the exact drilling depth for your screw length
• Standard 1/4" hex shank – quick-change compatible with most cordless drills and drill drivers
• High Carbon Steel (HSS 4241) construction – durable drill bits with a steel-45 chamfer body for long-lasting performance
• Golden/silver finish – easy to identify each bit at a glance

Specifications

• Material: HSS Drill 4241 (drill bit) / Steel 45 (chamfer drill body)
• Shank: 1/4" hex, quick-change compatible
• Color: Golden/Silver
• Pieces: 5

Made in Mainland China.

Great Pairing for Your Workshop

Complete your tool kit with the Screw Extractor Drill Bit Set 5 & 6 Pc – Carbon Steel for tackling stripped or stubborn fasteners. For a tidy workspace, keep your cables and tools organized with the 10-Pack Silicone Cable Ties – Reusable Cord Organizers.

Learn more: OSHA on personal protective equipment

Frequently Asked Questions

Q: What screw sizes are compatible with this countersink drill bit set?

A: This 5-piece countersink drill bit set covers wood screw sizes #5, #6, #8, #10, and #12, making it suitable for the vast majority of common woodworking and carpentry applications.

Q: Can I use these countersink bits with any drill?

A: Yes! Each bit features a standard 1/4" hex shank that is quick-change compatible, meaning it works seamlessly with most cordless drills, drill drivers, and drill presses that accept hex-shank accessories.

Q: How do I adjust the countersink depth?

A: Simply loosen the setscrew on the adjustable counter sleeve using the included Allen wrench, slide the sleeve to your desired depth, then retighten. This allows you to customize the drilling depth to match different screw lengths without needing extra tools.

Q: Are these bits suitable for hardwood as well as softwood?

A: These bits are made from high-carbon steel (HSS 4241) and are designed primarily for wood drilling, performing well across a range of wood types including softwoods and many hardwoods used in standard woodworking projects.

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.