Kierrep pora KWB 248045 1 kpl oikeakätinen

The kwb HSS-Co twist drill bit (KWB 248045) is a single right-hand rotation drill designed for precise drilling in demanding materials including alloyed and unalloyed steel, stainless steel (V2A/V4A), grey cast iron, cast steel, bronze and plastics. Made to DIN 338 with a 5% cobalt alloy, the bit offers increased heat resistance and wear performance for metalworking and general-purpose drilling tasks.

Advantages

The 135° point angle with split point according to DIN 1412 C provides self-centring performance and reduces walking on the workpiece. The HSS-Co material (5% cobalt) improves hardness and thermal stability compared with standard HSS, extending tool life under higher temperatures. A parallel shank ensures universal compatibility with standard drill chucks and holders.

Suitable for

Key specifications

How to use

Mark the drill position and secure the workpiece. Select an appropriate speed for the material and fix the parallel shank in the drill chuck. Apply steady pressure and start drilling; allow the drill to cut without excessive force. Clear chips regularly and use cutting fluid when drilling steels or stainless steel to reduce heat and prolong tool life.

Recommendations

For best results when drilling stainless or alloyed steels, use moderate cutting speeds, continuous or intermittent cutting fluid, and avoid overheating the drill. Replace the bit when wear or chipping appears to maintain precision and prevent workpiece damage.