The US PRO 5-35mm HSS-G+ Step Drill is designed for precision drilling in various materials, offering versatility and durability. Ideal for non-ferrous metals, sheet metal, and PVC. Size Range : 5 - 35mm Shank Diameter : 13mm Shank Length : 24mm Precision Made : Ensures accurate and clean holes. Material : High-quality speed steel for durability. Heat Treated : Increased hardness for extended tool life. Application : Suitable for drilling non-ferrous metals, sheet metal, and PVC. Usage : Can drill a range of hole sizes with a single bit; ideal for thin materials like sheet metal.