This set from Heller includes 6 HSS-Co cobalt twist drills equipped to tackle the toughest drilling jobs in stainless steel and metal. They are made from a special HSS steel with a 5% cobalt content. This set includes drills ranging in diameter from 2mm to 8mm. * Suitable for metal, non-ferrous metal, stainless steel * Split point and 135° point angle for optimum, extremely accurate starting * Precision tool compliant with DIN 338 RN for outstanding accuracy Set includes drills of the following diameters: 2mm, 3mm, 4mm, 5mm, 6mm, 8mm plus sturdy plastic case. https://elecena.pl/product/27747443/heller-17735-1-0990-hss-co-cobalt-twist-drills-din-338-rn-set-2-3-4-5-6-8mm 2025-01-23 https://elecena.pl/product/27747443/heller-17735-1-0990-hss-co-cobalt-twist-drills-din-338-rn-set-2-3-4-5-6-8mm 2026-07-11