The Alpen HSS Super Drill Bit in 1mm diameter is a precision-ground, bright steel twist drill designed for drilling into mild steel, aluminium, and general-purpose metalwork. HSS Super grade offers superior heat resistance and extended tool life compared to standard HSS, making it ideal for high-speed drilling on CNC machines, pillar drills, and hand-held power tools. Essential for metalworkers, fabricators, and maintenance technicians requiring reliable, accurate hole production.