The long, ground HSS twist drill bores deep holes in metal with the highest precision. Its greater length allows for drilling deeper holes. The self-centering drill tip with a cross grind and a point angle of 135 degrees enables perfect centering without wandering. Thanks to the cross-ground drill tip, there is no need for center punching or pre-drilling for diameters up to 10 mm. This precision-ground HSS steel drill bores 40% faster and requires 50% less feed force than conventionally ground HSS drills. The long ground HSS twist drill is manufactured according to DIN 338. It belongs to drill type N (small side cutting angle) with a point angle of 135 degrees and diameter tolerance h8.