Step Drill Bit - M35 4-20mm (TiAlN Coating)

Our uncoated M35 step bit is made from high-speed steel with 5% cobalt, offering increased heat resistance and hardness compared to standard HSS. Ideal for drilling into stainless steel, mild steel, and other tough materials, it delivers reliable performance without the added cost of coatings. Perfect for general-purpose use where durability and clean hole transitions matter.