UltimateCut FS DIN 338 Type N Spiral Drill Bit D. 12.5 mm HSS-Co5 Gold 3-Flat Shank: HSS-Co5, DIN 338, FLOWSTEP® tip, point angle 118°, right-hand cutting, 3-flat shank, precise centering without pre-drilling even on round surfaces such as pipes, extremely fast and gentle drilling, drilling large diameters without pre-drilling, smooth and quiet drilling process without jamming in the material, 3-flat shank prevents slipping in the chuck, optimally suited for use in handheld power tools, for non-ferrous metals, construction and carbon steels, high-alloy steels (e.g. V2A/V4A), tool steels, magnesium alloys, plastics as well as aluminum, Plexiglas, and wood. With cylindrical shank: up to nominal diameter 3.3 mm, with 3-flat shank: from nominal diameter 3.5 mm. Additional technical specifications: nominal diameter tolerance: h8, overall length: 151 mm, cutting direction: right-hand cutting, feed rate in steel up to 800 N: 0.2 mm/rev.