Achieve precision and efficiency with the Medalist Titanium Coated HSS Step Drill, designed to effortlessly bore holes from 4mm to 30mm in diameter. Its titanium coating ensures durability and extends the tool's lifespan, making it suitable for both professional and DIY projects. The step drill's high-speed steel construction guarantees smooth cutting through various materials, including wood, plastic, and metal sheets, with reduced friction and heat buildup. Its stepped design eliminates the need for multiple drill bits, simplifying the drilling process and saving time.