Description
General description The Step Drill Bit set includes 4 pieces with sizes 4-12mm, 4-20mm, and 4-32mm, designed for drilling holes in various materials such as steel, brass, wood, plastic, thin iron plates, aluminum, insulation boards, and PVC. Made from high-quality HSS, these drill bits are sturdy, rustproof, and suitable for use with electric screwdrivers, making them ideal for DIY projects, home improvement, and construction. Technical specifications Sizes: 4-12mm, 4-20mm, 4-32mm Material: High-Speed Steel (HSS) Thickness compatibility: Suitable for materials with a thickness not exceeding 4mm Hardness compatibility: Suitable for materials with hardness less than 25HRC Usage Ideal for drilling holes in steel, brass, wood, plastic, thin iron plates, aluminum, insulation boards, and PVC Pre-drilling with the 4mm HSS 6542 Twist Drill Bit can help reduce damage to the step drill bit Oil the step drill bits before each use to maximize service life