Built for the demands of professional electricians and contractors, the Milwaukee SHOCKWAVE™ Impact Duty™ Step Bit #4 (3/16" – 7/8") is engineered to punch through sheet metal, electrical panels, and junction boxes with speed and precision. Whether you're roughing in conduit knockouts on a commercial job site or tackling a residential service upgrade, this step bit delivers consistent, clean holes without the frustration of early shank failure or dull cutting edges. Optimised for use in impact drivers, it's the go-to bit for trade professionals who can't afford downtime.

Specifications

Model Number 48-89-9244
Step Bit Number #4
Size Range 3/16" – 7/8"
Shank Type 1/4" Hex (SHOCKZONE™)
Coating Titanium Aluminum Nitride (TiAlN)
Tip Style Rapid Strike™ Dual Spiral Flute
Colour Black
Compatible With Impact Drivers & Drills
Country of Manufacture USA (with global materials)
Brand Milwaukee Tool