Kierrep pora KWB 248065 1 kpl myötäpäivään

The KWB 248065 twist drill bit is a right-hand rotation HSS-Co drill designed for precise drilling in a range of demanding materials. Manufactured to DIN 338 from high-speed steel with 5% cobalt, it is suitable for alloyed and unalloyed steel, stainless steel (V2A/V4A), grey cast iron, cast steel, bronze and plastics. The 135° point angle with a split point according to DIN 1412 C provides self-centring performance and reduces slipping during start-up. The drill features a parallel shank for universal compatibility with standard drilling chucks.

Advantages

The 5% cobalt HSS-Co composition increases heat resistance and wear life compared with standard HSS drills. The DIN 1412 C split point and 135° angle ensure accurate centring and cleaner hole starts without the need for pilot holes in many applications. A parallel shank offers stable clamping and straightforward use in common drilling machines and chucks.

Suitable for

Key specifications

How to use

Secure the drill bit in the chuck or collet so the parallel shank is clamped firmly. Select an appropriate spindle speed and feed for the material being drilled; use lower speeds and steady feed when working stainless steels and alloyed materials. Apply cutting fluid when drilling metals to reduce heat and extend tool life. Drill with steady pressure until the hole is completed, then withdraw the drill while rotating to clear chips.

Recommendations

For best results, use suitable cutting fluid when drilling steels and stainless steels, ensure correct speed and feed for the material, and re-sharpen or replace the bit when wear affects performance. Always wear appropriate eye and hand protection when operating drilling equipment.