Countersink bit Wolfcraft WF4372000 — 12 mm countersink, 6‑point hex shank with ejector

Wolfcraft WF4372000 is a 12 mm countersink bit engineered for creating clean chamfers and screw recesses in wood and similar materials. The tool combines a 12 mm cutting head with a 6‑point hex shank to ensure stable driving in drills and bit holders. An integrated ejector assists in clearing chips or releasing the bit, making repetitive countersinking more efficient and reducing downtime during woodworking and repair tasks.

Advantages

The 12 mm diameter provides consistent, accurate chamfers for a range of screw sizes while the 6‑point hex shank minimizes slippage in the chuck or holder. The ejector mechanism helps to clear debris and simplifies bit removal after cutting. Constructed to withstand normal woodworking conditions, this countersink bit is intended for reliable, repeatable results when preparing screw seats and edge chamfers.

Suitable for

• Countersinking screw heads in soft and hardwoods
• Creating chamfers on edges and panels
• Cabinet making and furniture assembly
• General repair and joinery work requiring precise screw seating

Key specifications

• Cutting diameter: 12 mm
• Shank type: 6‑point hex shank for secure mounting
• Material compatibility: wood and similar materials
• Feature: integrated ejector mechanism for chip removal

How to use

Secure the countersink bit in the drill or bit holder using the 6‑point hex shank to ensure a firm grip. Mark the screw position and drill a pilot hole if required for the screw size and material. Apply steady, controlled pressure and run the drill at a moderate speed to form the chamfer or recess; avoid excessive speed that can burn or tear the wood. Use the ejector to clear chips or withdraw the bit when the cut is complete, and inspect the seat for correct depth before installing the screw.

Usage recommendations

Use a properly sized pilot drill in harder woods to prevent splitting, and select an appropriate screw size to match the 12 mm countersink seat. Keep the cutting edges clean and periodically check the bit for wear; replace when the finish quality degrades. For repeatable results, maintain consistent drilling speed and pressure.