Blue Spot 12063 Impact Driver And Extractor Set 1/4 D Features and Benefits: The Blue Spot Tools 1/4″ Impact Driver and Extractor Set is manufactured from hardened steel for increased strength and durability. The impact driver has a knurled handle to maintain grip during use and comes complete with 6 chrome vanadium 50mm power bits. Compact design works well in confined areas, with a few strikes of a hammer you will be able to loosen rusted and seized fasteners and broken screws.