Powerful HSS drill meets DIN 338, RN, the drill is made of high quality high speed steel (HSS), the steel is tempered with alloys - Tungsten 4%, Molybdenum 2%, Chrome 4%, Vanadium 1% - for drilling steels up to 900 N / mm. Precisely manufactured helix for maximum performance, accuracy and good centering, grinding angle of the drill tip 135 °, designed for industrial use. Packing PVC case of 10 (5) pcs. [***]