MILWAUKEE 48-89-9221 High-Speed Steel Step Drill Bit Set

This 3-piece step drill bit set is used for drilling clean, burr-free holes in thin materials such as sheet metal, plastic, and drywall. Each bit steps from 1/8" to 7/8" and is made from black oxide high-speed steel for extended life in general fabrication and electrical work.

The set includes three step drill bits with a range of 1/8" to 7/8". They are made from black oxide high-speed steel (HSS) and are not impact rated. The manufacturer part number is 48-89-9221. These bits are designed for handheld drilling in metal and plastic.

3G Electric supplies the MILWAUKEE Step Drill Bit Set 48-89-9221 to customers worldwide. As a global industrial equipment distributor since 1990, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time.

For metal drilling, choose a step drill bit made from high-speed steel (HSS) with a black oxide finish, like the MILWAUKEE 48-89-9221 set. Ensure the step range covers your hole size needs (1/8" to 7/8") and that the bit is not impact rated for standard drill use. Always use cutting oil for best results.