Metal drill bits ground from solid extremely heat resistant cobalt-alloyed high speed steel produced according to DIN 338. Polished finish.
Split point shaped cutting tip with 135° angle for improved centering - no center punch required.
5% Cobalt content. Withstands high drilling heat.
Type N flute normal angle. Suitable for drilling high alloy content steels and metals with tensile strengths over 1000 N/mm².
like heat and acid proof steels and stainless steel. Colour: bronze.