Halls MC High Speed Steel Step Drill Bit – HLLMC10M

The Halls MC High-Speed Steel Step Drill Bit in the 4mm - 30mm size range offers the most comprehensive hole-cutting solution in the range, covering fourteen different diameters in increments of 2mm. This variant is ideal for professionals requiring maximum versatility from a single tool, eliminating the need to carry multiple drill bits for varied metalwork projects. Designed for sheet metal up to 4mm thick, this step drill features a 13mm shank suitable for standard drill chucks. The extensive size range—4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, and 30mm—makes it particularly valuable for electrical panel work, ventilation installations, and general fabrication tasks where diverse hole sizes are required. Manufactured from high-speed steel, this bit maintains its cutting edge through repeated use. Always employ a suitable coolant when drilling metals to maximise tool life and ensure clean, accurate holes. Features and Benefits: • Widest size range covering 4mm through to 30mm • Fourteen different hole sizes from one bit • 13mm shank fits standard drill chucks • Maximum material thickness: 4mm sheet metal • 2mm increments provide excellent size flexibility Specifications: Min. Size (mm): 4 Max. Size (mm): 30 No. Steps: 14