The Apex AN-4MM-5PK Power Bit is the ideal tool for power screwdrivers.
This 5 pack of 7/16" hex shank power bits are designed to fit most standard drill chucks. Power Bit,Metric,7/16",PK5. If you need a variety of bit sizes in your toolbox, this Apex AN-4MM-5PK Power Bit set is an excellent choice.With its hex shank, it fits most standard drill chucks.