Countersink drill bit KWB 704310 1 pc 1.2 cm diameter

This kwb countersink bit is designed for accurate countersinking in wood and non‑ferrous metals. The tool features a five‑edged tip for precise machining, an 8 mm cylindrical shank for stable mounting and a 50 mm overall length that balances handling and versatility. Manufactured from carbon steel with a black oxide finish, the bit offers corrosion resistance and durable performance. It is available in head diameters 8, 12, 16 and 20 mm; the offered item corresponds to the 12 mm (1.2 cm) diameter variant.

Advantages

The five‑edged tip ensures clean, accurate countersinks and improved centring. The 8 mm cylindrical shank provides secure seating in common chucks and holders. Carbon steel construction with a black oxide coating increases wear resistance and protects against corrosion, supporting long service life under regular use.

Suitable for

• Countersinking screw heads in wood
• Creating flush fittings in non‑ferrous metals (e.g., aluminium, brass)
• Carpentry and joinery tasks requiring precise recesses
• DIY and professional assembly work

Key specifications

• Brand: KWB
• Manufacturer part number (MPN): 704310
• EAN: 4009317043102
• Head diameter: 12 mm (1.2 cm) — variant of available sizes 8 / 12 / 16 / 20 mm
• Shank type and diameter: cylindrical, 8 mm
• Overall length: 50 mm
• Material: carbon steel with black oxide finish
• Package quantity: 1 piece

How to use

Secure the countersink in a compatible drill or holder using the 8 mm cylindrical shank. Select appropriate drill speed and feed for the work material (lower speeds for metals, moderate speeds for wood). Position the tip at the intended point, start the drill at low speed to establish the recess, then increase speed and apply steady pressure until the desired countersink depth and flush seating are achieved. Withdraw the tool while the drill is still turning to avoid catching on the material.

Usage recommendations

Use cutting fluid or light lubrication when countersinking non‑ferrous metals to improve finish and reduce heat. Clamp workpieces securely and wear appropriate eye protection. Inspect the bit for wear before use and replace if the cutting edges become dull to maintain clean countersinks.