Check the listing for details. DeWalt DWAMF30 MAXFIT Impact Driver/Drill Screwdriving 30-Piece Set with Sleeve. Condition: New. Listed at 18.90 USD. #1 BEST SELLER! BRAND NEW SEALED ITEM! BUY MORE AND SAVE MORE IN CART! BRAND NEW ITEM! DEWALT MAXFIT screw driving bits are engineered for use with Impact Drivers. Their tip geometry reduces wear and creates an ideal fit with every fastener. Each bit features a unique torsion zone to deliver long life in both metal and wood fastening applications. The S2 modified steel enhances the overall durability of the product. CNC manufacturing ensures the product consistently delivers the highest level of quality. MAXFIT optimized tip geometry reduces wear and creates an ideal fit with the fastener Torsion zone delivers long-life with impact drivers S2 modified steel for durability CNC machined for consistent quality and geometric accuracy Compatible with magnetic sleeve to hold fasteners