This DoubleDrive 14-In-1 T-Handle screwdriver and nutdriver set is a fantastic addition to any toolkit. Complemented by an arsenal of CR-V steel bits, the T-Handle gives you the perpendicular grip angle you need for increased torque and downward pressure to tighten and loosen even the toughest fasteners. Featuring a magnetic bit holder and ergonomically contoured grip, it accepts any standard size hex bits, such as those included, and also features a handy in-handle bit storage system for easy switching on-the-go. Duratech’s patented DoubleDrive technology is the latest evolution in ratcheting screwdriver technology, which enables the user to drive fasteners at twice the speed of a standard ratcheting screwdriver. This is made possible with the revolutionary new gearing design for engaging the driver while rotating in both directions, not just the direction of driver rotation. Never need to re-position your hands during the operation for significantly reduced hand fatigue.