Pora KWB 248102 — kierrep pora, oikeakätinen, 1 kpl

kwb 248102 is a single twist drill bit manufactured to DIN 338 with a right-hand cut, type N profile and 5% cobalt alloy for increased heat resistance. The bit is precision ground, bronze-coloured, cylindrical shank, with a 135° tip angle and cross-ground geometry to DIN 1412 C for self-centering performance. It is intended for industrial use on difficult-to-machine materials such as steel and alloyed steel, stainless steels (A2/A4), cast iron, cast steel, bronze and certain plastics.

Advantages

The cobalt-alloyed construction (5% Co) and precision ground flutes provide higher temperature resistance and extended tool life when drilling hard or abrasive materials. The 135° split/C point and cross-ground tip reduce walking and improve centring without a pilot hole. The bronze-coloured finish and cylindrical shank ensure compatibility with standard chucks and reliable clamping for drilling tasks.

Suitable for

Key specifications

How to use

Mount the cylindrical shank securely in a compatible drill chuck. Use right-hand rotation and select appropriate spindle speed and feed for the material being machined — lower speeds for stainless steel and hard alloys, higher speeds for softer metals and plastics. Apply steady pressure; allow the drill to cut without excessive force and clear chips regularly. Use cutting fluid when drilling steels and stainless steels to reduce heat and extend tool life.

Recommendations

For best results on stainless and alloyed steels, use moderate cutting speeds, adequate coolant and intermittent pecking when deep holes are required; inspect the bit for wear and replace when the tip becomes dull or damaged.