Kierreporssarja KWB 209625, oikeakätinen, 2 kpl

KWB 209625 is a set of two DIN 338 twist drill bits with right-hand cut, type N, roll-forged construction and blue-black finish. The bits have a 118° tip angle and are steam-hardened for increased wear resistance. They are intended for drilling in alloyed and mild steel, castings, non-ferrous metals and hard plastics, and fit standard drills with right-hand rotation.

Advantages

The roll-forged shank and flutes provide durable construction, while steam hardening increases edge retention. The 118° point offers a balance between cutting aggressiveness and centring for general-purpose drilling. The blue-black surface finish reduces glare and gives basic corrosion protection. Supplied as a two-piece set, the bits are easy to store and replace in common drill chucks.

Suitable for

Key specifications

How to use

Secure the desired drill bit from the set in the chuck of a compatible drill, ensuring it is centred and tightened. Use steady feed pressure and appropriate cutting speed for the material: lower speeds for steels, higher speeds for non-ferrous metals and plastics. Apply cutting lubricant when drilling steels and castings to reduce heat and extend tool life. Clear chips frequently to avoid clogging the flutes and to maintain drilling accuracy.

Recommendations

For best results, match drill speed and feed to the material, use cutting fluid for ferrous materials, and replace the bit when wear causes poor centring or excessive heat. Do not exceed the drill's recommended RPM for the chosen diameter and material to avoid premature wear or breakage.