Workpro Step Drill Bit Set Well-organized Bag Included Metric/sae

WORKPRO 3-Piece Step Drill Bit Set - SAE. Quick change 1/4" hex shank (6.35mm)can be easily fit into power driver, drill and press drill. Durable & Sturdy Material:High speed steel along with titanium coating ensures outstanding durability and sharpness for plastic, aluminum, copper, stainless steel hole drilling.