Transform your drilling experience with this premium M2 HSS step drill bit featuring six clearly marked sizes from 3/16" to 1/2". The double-fluted design, enhanced with higher concentrations of Tungsten and Molybdenum, delivers exceptional durability and cleaner holes compared to standard bits. The polished steps with highlighted size markings allow continuous drilling without interruption for size checks. This versatile bit excels at cutting through various materials including stainless steel (up to 12ga/2.7mm thickness), hardened metal, mild steel, galvanized steel, aluminum, copper, plastic, and wood. The quick-change 1/4 inch hex shank ensures compatibility with impact-ready power tools for swift bit changes. Thanks to precision CNC processing and optimized design features, this step bit offers superior cutting performance while eliminating the need for multiple individual drill bits. The high-speed steel construction with vacuum heat treatment and nitride surface hardening ensures lasting performance across demanding applications.