The SW-Stahl 82411SB is a high-quality HSS-TiN coated step drill designed for precise and burr-free drilling in sheet metal, non-ferrous metals, and plastics. This durable drill bit features 9 steps, covering diameters from 4mm to 12mm, with 1mm increments. Its 6mm hexagonal shank ensures a secure grip in standard drill chucks, preventing slippage. The TiN coating enhances surface hardness and wear resistance, extending tool life and improving drilling performance.