Stepped Drill Bit
This high-speed steel step drill bit is designed for drilling multiple-sized holes in various materials. The stepped design allows drilling holes with diameters from 4mm to 22mm using a single bit.



Technical Specifications
Product Overview
Versatile Multi-Size Drilling
This high-speed steel stepped drill bit is engineered for precision and efficiency across a variety of professional applications, including electrical, plumbing, and HVAC work. Its innovative stepped design allows for the drilling of multiple hole diameters ranging from 4mm to 22mm with a single tool, streamlining workflows and reducing the need for constant bit changes. Constructed from durable high-speed steel, this bit ensures long-lasting performance and reliable results in diverse materials.
Technical Specifications
Drilling Range
- 4
- 6
- 8
- 10
- 12
- 14
- 16
- 18
- 20
- 22
Maximum Material Hardness
- Compatible Materials
- Carbon steel plateThin iron plateStainless steelInsulation plateWood plate
- Tool Material
- High-Speed Steel



