Achieve clean, flush screw finishes every time with this trade-grade countersink drill bit, engineered for builders, joiners, and serious DIYers. Built from heat-treated steel for durability and precision, this countersink delivers consistent results with less tear-out and fewer tool changes.

✔ Professional Finish, Every Time
Creates clean, flush screw heads for a high-quality, finished look.

✔ Faster Work On Site
Drill and countersink in one smooth operation — fewer tool changes, less downtime.

✔ Built for Trade Use
Manufactured from hardened, heat-treated steel for long life under repeated use.

✔ Cleaner Cuts, Less Tear-Out
Double-fluted design ensures smooth cutting and consistent depth control.

✔ Reliable NZ Supply
In-stock and shipped fast from a trusted New Zealand supplier.

🔹 IDEAL FOR

• Builders & construction professionals

• Joiners & cabinet makers

• Woodworkers & furniture makers

• Renovators & serious DIY users

Perfect for timber, MDF, and general woodworking applications.

🔹 PRODUCT FEATURES & SPECIFICATIONS

• Material: Heat-treated steel

• Cutting Angle: 45° countersink

• Design: Double-fluted for smooth, controlled cutting

• Application: Drilling and countersinking in a single operation

• Finish: Clean, flush screw seating

• Sizes Available: Multiple sizes available (select your required size)

(K number relates to corresponding gauge screw i.e. K14 cutter is for 14-gauge screws)

🔹 WHY CHOOSE KIWI AS BUILDING BITS?

Unlike generic hardware-store bits, our countersinks are purpose-built for performance and longevity. Trusted by trades and serious DIYers, we focus on quality tools that last, backed by reliable NZ service and fast delivery.

🔹 SIZE SELECTION HELP 

Not sure which size you need?

• Smaller sizes → fine screws & detail work

• Larger sizes → decking, framing & structural fixings

👉 Check out our other countersink sizes to match your application.

🔹 TRUST & CONFIDENCE BOOSTER

⭐ Trade-Grade Quality
⭐ Fast NZ Shipping
⭐ Trusted Specialist Tool Supplier