Vrták KWB 109119 rýchlorezná oceľ HSS

Drill Bit KWB 109119 High-Speed Steel HSS is a set of HSS spiral drills manufactured to DIN 338 specifications. Each right-hand cutting, type N drill features a roll-forged spiral, ground chamfer and a polished, vapour-plated finish with a 118° point angle and cylindrical shank. The set is suitable for drilling alloyed and unalloyed steel, cast iron, non-ferrous metals and hard plastics.

Advantages

The roll-forged spiral and ground chamfer provide consistent cutting performance and improved chip evacuation. Vapour-plated, polished surfaces enhance corrosion resistance and reduce friction during drilling. The 118° point angle and hardened HSS material ensure durability and accurate centring across a range of materials typical for KWB HSS drills.

Suitable for

Key specifications

How to use

Clamp the drill with the cylindrical shank securely in the chuck of a drill or drill press. Select an appropriate speed for the material being drilled and, if necessary, use cutting lubricant when working with steels or harder materials. Start drilling with steady pressure, allow the drill to clear chips regularly, and avoid excessive axial force to maintain tool life and hole quality.

Recommendations

For best results, use lower speeds and cutting fluid on alloyed steels and higher speeds for softer non-ferrous metals and plastics; inspect drill edges before use and replace when worn to maintain precision.