Workpro 3-piece Step Drill Bit Set Metric 1/4" Hex Shank

Quick change 1/4" hex shank (6.35mm)can be easily fit into power driver, drill and press drill. Shank Type Hex. Quick change 1/4" hex shank is a great universal fit. High speed steel along with titanium coating ensures outstanding durability and sharpness for plastic, aluminum, copper, stainless steel hole drilling.