Keskitysporanterä (Brad Point) KWB 511908

Spur (brad point) drill bit KWB 511908 is an 8 mm diameter, 117 mm long wood drill designed for precision holes with minimal splintering. Made from HSS-M2 with precision grinding and a cylindric shaft, the uncoated bit features a patented centring tip and TwinLand® groove design to improve chip removal. It is industrial quality and supplied in blister packaging for protection and storage.

Advantages

The KWB 511908 delivers clean, accurate bore holes in a variety of wood materials thanks to its spur tip and precision-ground flutes. The TwinLand® grooves aid chip evacuation, reducing heat and preventing clogging during drilling. The cylindric shaft ensures secure chucking and consistent concentricity, while the uncoated HSS-M2 construction provides durability for repeated use.

Suitable for (tasks / use cases)

Key specifications

How to use

Fit the cylindric shaft into a compatible drill chuck and tighten securely. Mark the drilling position and start at low speed to allow the centring tip to locate accurately, then increase speed to the appropriate setting for the material. Apply steady, moderate pressure and withdraw the bit periodically when drilling deep holes to clear chips. For plastic or thin boards, reduce speed to avoid melting or tearing.

Recommendations

Use appropriate personal protective equipment (safety glasses and gloves). Select drill speed according to material hardness, and ensure the chuck grips the cylindric shaft firmly. Store the drill bit in its blister pack to protect the cutting edges.