The AIYI HSS Step Drill Bit (4-12mm) is a versatile and efficient drilling solution designed for enlarging holes and drilling multiple sizes with a single bit. Made from high-speed steel (HSS), this drill bit offers excellent durability, heat resistance, and long-lasting performance.
Its step design allows for smooth and precise drilling in a range of sizes, eliminating the need to switch between multiple drill bits. Clearly marked size increments make it easy to achieve accurate hole diameters every time.
Ideal for use on thin materials such as steel sheets, aluminium, plastic, and other metals, this step drill bit is perfect for DIY projects, electrical work, automotive repairs, and general workshop use.
Features
Multi-Size Drilling: Covers sizes from 4mm to 12mm
Step Design: Drill multiple hole sizes with one bit
High Speed Steel (HSS): Durable and heat-resistant
Clear Size Markings: Easy and accurate drilling
Smooth Cutting: Reduces burrs and improves finish
Versatile Use: Suitable for metal, plastic, and sheet materials
Professional Performance: Ideal for workshop and DIY use
