6-Piece Step Drill Bit Set: 3 Triangular Handle Serrated Bits (4-12mm, 4-20mm, 4-32mm) for Hole Expansion

This versatile drill bit set is perfect for precision hole expansion and caters to a wide range of drilling needs. Featuring three triangular handle serrated bits available in sizes 4-12mm, 4-20mm, and 4-32mm, it offers exceptional control and stability during use. The step design ensures smooth transitions between sizes, reducing the need for multiple bits and providing cleaner cuts. Ideal for both professional and DIY projects, these durable, high-quality bits can effortlessly drill through various materials, including metal, plastic, and wood, making them a valuable addition to any toolbox. Manufacture country: China Instructions included: No