The unique ratcheting open end design of Zwrench™ combines speed of use, easy access and strength to move fastenerslike no other wrench.
The ratcheting open end design makes moving hard to reach fasteners and
flare nuts easy without removing the wrench from the fastener to change
position. The unique ratcheting design grabs the fastener when torque
pressure is applied making it difficult to slip. Zwrench™
exceeds U.S. ANSI torque specifications by over 30% and is manufactured
from the highest quality chrome vanadium steel.