Description
Buy 3Pcs HSS Step Drill Bit Set with Auto Center Punch for drilling metal, wood and plastic. Durable multi-size drill bits for DIY and industrial use.


About this item
- Versatile Size Set – Includes 3 step drill bits (4-12mm, 4-20mm, 4-32mm) for precise, clean hole drilling across a wide range of diameters—ideal for DIYers, professionals, and metalworkers alike.
- Durable High-Speed Steel – Made from premium HSS with a titanium coating for increased wear resistance, heat resistance, and longer life even when drilling into tough materials.
- Automatic Center Punch Included – Spring-loaded center punch marks the drilling spot with accuracy and prevents bit walking, improving precision and efficiency on metal and other surfaces.
- Compatible with Most Drills – Can be used with gun drills, bench drills, and other standard drill drivers. Ensure to use water or coolant to reduce friction and extend tool life during use.
- Multi-Material Use – Perfect for drilling holes in sheet metal, stainless steel, brass, wood, plastic, PVC, copper, and fiberglass—great for electrical panels, DIY projects, and repairs.



































