Features and Benefits:•PH #1 & SL 3/16”•SQ #2 & SQ #1•ECX™ Bits for electrical fasteners•Most common bit sizes included•Durable steel construction•Compatible with Milwaukee® 13 in 1 Cushion Grip Screwdriver•Compatible with Milwaukee Multi-Functional Screwdrivers•Engraved markings for quick identification•Limited Lifetime WarrantyThe MILWAUKEE 4PC Replacement Bits include the Bit Sleeve & 1/4" Nut Driver, ECX #1 & #2, PH #2 & SL ¼”, PH #1 & SL 3/16”, and SQ #1 & #2. The driver bit set is compatible with the Milwaukee multi-functional screwdrivers and offers the most common bit sizes. These bits are double-sided for compact convenience with engraved markings for quick identification. This 4-piece bit set has a limited lifetime warranty.