Includes 19 drills from 1 mm to 10 mm x 0.5 mm in a plastic case.4413 Cobalt HSS-E drill bits 1 mm, 1.5 mm, 2 mm, 2.5 mm, 3 mm, 3.5 mm, 4 mm, 4.5 mm.5 mm, 5.5 mm, 6 mm, 6.5 mm, 7 mm, 7.5 mm, 8 mm, 8.5 mm, 9 mm, 9.5 mm, 10 mm.Top angle of 135° with self-centring split-point tip for quick cutting and perfect centring.Drill bits have a cylindrical shank (shank equal to drill bit diameter) and designed for use in drill stands and drill drivers.The cobalt high-speed steel (HSS) provides long lasting high performance when drilling in stainless steel materials.Cobalt drills work good in following materials alloyed/non-alloyed steel, stainless steel, cast iron, cast steel and acid- and heat-resistant steels.Manufactured to DIN 338 N