KLEIN TOOLS 631 Nutdriver Set, 7-Piece, Steel, Chrome, Black, Specifications: 3 in Shank

General-purpose selection of the most frequently used nut drivers. Full hollow shafts facilitate work on long bolt applications. Cushion grip handles allow for greater torque and comfort. Internal flanges provide solid, twist-resistant shaft anchor. Tip-Ident® quickly identifies nut driver hex orientation and size by color coding the handle ends so you can easily engage the nut driver with the fastener.