Boor KWB 206525 2,5 mm

The KWB 206525 2.5 mm drill bit is a precision-engineered, right-hand twist drill intended for general industrial use. Manufactured to DIN 338 with a type N geometry and precision ground flutes, the drill bit has a 135° tip angle and is cross-ground to DIN 1412 C for improved centring. The uncoated, self-colour finish and cylindrical shank make it suitable for secure clamping in standard chucks and holders. Supplied as a single piece in blister packaging.

Advantages

This drill bit provides precise drilling with a self-centring, cross-ground tip that reduces walking at the start of the hole. Its DIN 338, type N ground geometry offers a balance between cutting performance and tool life for a wide range of materials. The 135° tip angle improves control when drilling harder materials while the cylindrical shank ensures compatibility with common drilling equipment.

Suitable for

Key specifications

How to use

Secure the drill bit in a suitable chuck or collet with the shank fully seated and tightened. Select a rotational speed and feed appropriate for the work material and diameter (moderate speeds for harder materials, higher speeds for soft non-ferrous metals and plastics). Use cutting fluid when machining steels and alloyed materials to extend tool life and improve hole quality. Start drilling with light pressure to ensure the self-centring tip locates the hole, then apply steady feed until the hole is completed.

Recommendations

For best results, match drill speed and lubricant to the workpiece material: use cutting oil for steel and alloyed steel, and a light oil or dry drilling for aluminium and plastics. Replace the bit if chipping or excessive wear is observed to maintain hole accuracy.