Self-tightening universal box wrench features a total of 18 tapered openings to fit a wide range of fastener sizes and styles.
Fits standard hex head fasteners from 5/16" to 7/8", and 8mm to 22mm in diameter. Unique open-end design also fits eye-bolts, hooks, J-bolts, cup hooks, wing nuts, square end fasteners up to 1-1/2" (38mm) long.
10-3/4"L.