The Universal Nut Grabber is the optical nut driver you can't live without! As the size and shape of lock nuts proliferate, so does your collection of nut drivers. How many times a day do you try driver after driver until you find the one that fits your nut? Western Optical has ended your search with the Universal Nut Grabber. The expandable jaws grip any size or shape nut. One driver does it all. Solid, all metal construction. 3-3/4" long.