3Pcs HSS Step Drill Bit Set

This 3-piece set of HSS step drill bits is designed for precision hole cutting in wood, metal, and plastic. Featuring straight grooves and nitride black coating, these bits offer durability and efficient heat dissipation during use. The set includes sizes 3-12mm, 4-12mm, and 4-20mm to cover a wide range of drilling needs.

Equipped with hex shanks for secure grip and easy bit changes, these step drill bits create clean, accurate holes with smooth step transitions. Ideal for DIY projects, electrical work, and professional applications, this set provides versatility and long-lasting performance for your toolkit.