RUKO Catalogue

313 HSS HSSE Co 5 25-30° TC 180° h8 N HSS HSS - G HSSE Co 5 HSSE Co 8 TC HSS - R 5xØ 60° 130° 40° h8 ≥Ø4,0mm 3 Gold surface Very suitable for all-purpose use in drilling machines and cordless drills High-speed steel, ground High-speed steel rolled Gold / black oxidized surface Shank: reduced TECRONA coating Shank: Weldon Drilling depth e.g. 5 x diameter Centre angle e.g. 60º High-speed steel bright / black surface TiN coating High-speed steel with 5 % Cobalt content, ground Bright Right hand cutting Tolerance e.g. h8 Black surface Shank: 3-way clamping surface Shank: cylindrical Shank: Morse taper left hand cutting TiAlN coating High-speed steel with 8 % Cobalt content, ground Helix angle e.g. 40° Point angle e.g. 130° Tungsten carbide 01. Twist drills 02. Special drills High-speed steel Bright / black surface TiCN coating AlTiN coating TiN coating High-speed steel with 5 % Cobalt content, ground Bright surface Right hand cutting Helix angle e.g. 25-30° Shape N: Helical point normal ground Tungsten carbide Centre point Point angle e.g. 180° Tolerance e.g. h8 Black surface Overview of symbols