The 8 pc Hex Shank Drill/Driver Set conveniently fits all tools with 1/4" SpeedLoad+™ quick-connect chucks or insert directly into a drill. Included in the set are four 1/4" Hex Shank Titanium Coated Drill Bits that make drilling into wood, metal and plastic a snap. Sizes include 5/16", 1/4", 3/16", and 1/8". Adding to the versatility of the set, you will receive four 2" S2 pro-grade steel power bits for driving in fasteners: P2, P3, SQ2, and SL8-10.