Impact Ready, 5 Piece, Compact Nutsetter Set, Includes: 1/4", 5/16", 3/8", 7/16" & 1/2" Nutsetters, Design Allows For Greater Accessibility, 1/4" Hex Shank For Compatibility With Impact Drivers, Locking Bit Holders & Right Angle Attachment, Magnet Provides Fastener Retention For Ease Of Use, Engineered For Use In Impact Drivers, Applications Include Wood & Metal.