The RUKO 101087PRO step drill bit set features high-speed steel (HSS) construction with sizes ranging from 6 to 27 mm, designed for use with sheet metal. This set includes three step drill bits with a triangular shank for enhanced grip and stability during use. Ideal for efficiently creating holes of various sizes in metal materials, this set is useful for professional and DIY applications. https://elecena.pl/product/28443622/ruko-101087pro-step-drill-bit-set-3-piece-hss-triangular-shank-6-27mm 2025-04-16 https://elecena.pl/product/28443622/ruko-101087pro-step-drill-bit-set-3-piece-hss-triangular-shank-6-27mm 2026-08-20