Bosch Professional Zubehör HSS Metal twist drill 11 mm

The long, ground HSS spiral drill bit 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-ground design and a tip 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 drill bit made of HSS steel drills 40% faster and requires 50% less feed force than conventionally ground HSS drill bits. The long ground HSS spiral drill bit is manufactured according to DIN 338. It belongs to drill type N (small side cutting angle) with a tip angle of 135 degrees and a diameter tolerance of h8.