HSS step drill cone drill designed for fast, accurate hole drilling and size changes. Key benefits Covers multiple hole sizes with one bit: eliminates frequent tool changes and speeds up work. High Speed Steel (HSS) construction: durable, good edge retention and reliable performance for repeated use. Tapered step design produces clean, consistent hole diameters and helps deburr as you enlarge holes. Compact handle: 13 mm handle length for stable grip and easy bit installation. What it does and why you need it Provides stepped drilling from 6 mm up to 60 mm in one tool, making it ideal where a range of hole diameters is required. Accurate, repeatable steps allow controlled enlargement of existing holes or creating new tapered holes without swapping bits. Specifications Product type: 6-60 mm Taper Drill Bit (step/taper drill) Material: High Speed Steel (HSS) Drill sizes (steps): 6, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60 mm Handle length: 13 mm Practical use scenarios Electrical and HVAC installation: quickly enlarge conduit or knockout holes in thin metal panels without changing bits for each size. Metal fabrication and maintenance: drill and step holes in sheet metal or thin gauge steel for fast prototype or repair work. DIY and workshop tasks: cut progressive holes in plastics, laminates, or wood where multiple diameters are needed for fittings or bushings. Notes for use Use at the appropriate speed and with light feed pressure for best results; clamp workpiece securely. Designed as a tapered step drill—best suited for progressive drilling and hole enlarging rather than heavy material removal.