This tool set includes the 7-in-1 Heavy Duty Multi-Nut Driver (Cat. No. 32807MAG) and the Pro Folding Hex Key Set, 11 Fractional Inch-Sized Keys (Cat. No. 70550). The Klein Screwdriver / Nut Driver is seven sizes in one tool. All sizes allow for easy, one-handed driving. The sizes are interchangeable ensuring you have the size you need when you need it. Color coded shaft ends make it easy to identify the size. Increase your productivity and lighten your load with this multi-nut driver. Klein Tools' new Pro Folding Hex Key set conveniently consolidates two sets into one. The heavy-duty 11-Piece set includes a high-leverage, 4-Inch long 1/2-Inch key. Industrial strength, extended reach blades open independently up to 270 degrees, and a precision fit design to reduce slippage and stripping. The durable handle is made of reinforced nylon with a comfortable grip. The heavy-duty Pro Folding Hex Key set is built specifically for a rigorous job site.