Kierrep pora KWB 248050 1 kpl oikeakätinen

The KWB 248050 twist drill bit is a single-piece HSS-Co (5% cobalt) drill manufactured to DIN 338 for right-hand rotation drilling. It is intended for precise drilling in a variety of demanding materials including alloyed and unalloyed steel, stainless steel (V2A/V4A), grey cast iron, cast steel, bronze and plastics. The 135° split point according to DIN 1412 C provides self-centring performance and reduces slipping, while the parallel shank ensures compatibility with a wide range of drilling machines.

Advantages

The 5% cobalt high-speed steel composition increases heat resistance and wear life compared with standard HSS drills. The 135° split point gives reliable self-centring and easier penetration into hard or tough materials. Manufactured to DIN 338 and using the DIN 1412 C split-point geometry ensures consistent dimensions and performance. The parallel shank enables universal clamping in drill chucks and holders.

Suitable for

Key specifications

How to use

Secure the KWB 248050 twist drill bit in the drill chuck or holder ensuring the parallel shank is clamped firmly. Select appropriate spindle speed and feed for the workpiece material — lower speeds for stainless steels and higher speeds for softer materials such as plastics or bronze. Use cutting fluid when drilling steels and stainless steels to improve cooling and tool life. Start drilling with light pressure until the split point has engaged, then apply steady feed to complete the hole.

Recommendations

For best results, match drill speed and feed to the material being drilled and use suitable coolant for steel and stainless steel. Inspect the drill bit for wear or damage before use and replace when cutting performance deteriorates.