This handy Safety Wire Twister has been a workhorse tool since the early days of aviation. Also called a "wire driver," it's simple, elegant screwdriver-like design makes it easy to use with excellent results. It will produce uniform twists without any kinks and works equally well for simple pigtail, or multi-series wiring. Works with all size wires from .021" to .060". 8" working length. Made of stainless steel.