Now here’s a new twist. The Master Mechanic dual-drive screwdriver employs a patented ratchet design that doubles your screwdriving efficiency, at least by comparison with old, ratcheting screwdriver designs. Not only does the nifty new tool drive screws when you turn the handle clockwise, it continues to drive them on the recovery stroke, when you turn the handle back counter-clockwise. The dual-ratcheting Swift Driver comes with a flexible shaft extension and multiple bit sizes. An ergonomic handle has a non-slip rubber grip and can store bits.