Description
- HSS Material, High Hardness: Step drill bits are made of high-speed steel (HSS), which has high hardness and wear resistance, ensuring that the drill bits remain sharp and durable during long-term use
- Efficient Drilling: The stepped design of the cone cutter allows you to gradually expand the hole diameter without changing the drill bit, improving work efficiency and reducing the frequency of tool replacement
- Precise Control: The conical design of the hss drill bit set makes the drilling process more precise, and users can easily control the hole size to avoid over-drilling or material damage
- Versatility: Suitable for processing copper, aluminum, cast iron and other metal materials, it is an ideal choice for home repairs and professional work
- Multi-size Selection: Three different sizes of cone drill bits (4-12mm, 4-20mm and 4-32mm) can meet the needs of different hole diameters and are suitable for a variety of materials and projects
