UNIKA Step Drill Bit (HSS):4-39mm

The UNIKA step drill bit is a versatile drilling tool constructed from high speed steel, designed to create a series of precise, stepped holes in a single operation. This product spans a diameter range from 4 to 39mm, allowing users to access multiple hole sizes without changing tools. Buyers often select this type of bit for its efficiency and consistency, as it eliminates the need to align a standard twist bit for each new size. The high speed steel material provides the necessary hardness and heat resistance to maintain a sharp cutting edge during extended use. To choose the appropriate bit, verify that the maximum hole size required for your project does not exceed the 39mm upper limit of this specific range.