Klein Tools' 9 in. 9-in-1 Pass-Through SAE Magnetic Multi-Nut Driver features a heavy-duty Cushion-Grip handle designed to improve comfort and torque during extended use. Extended wrench-assist areas on the barrels provide additional leverage when fasteners require more force, while the one-handed operation helps streamline repetitive installation tasks. Nine integrated sizes cover 3/16, 1/4, 5/16, 11/32, 3/8, 7/16, 1/2, 9/16, and 3/4 in., giving electricians, professional tradesmen, maintenance crews, and DIYers a versatile solution for working with nuts, bolts, threaded rod, and other hex fasteners.