Rather than a handle that actuates within a conventional gate, it is a simple, space-saving knob that rotates with the precise clicks of a torque wrench.
From the chron.com
He removed a device from his wrench that limited the amount of torque he could apply to the stubborn bolt.
From the chron.com
The wrench or spanner is a tool used to provide a mechanical advantage in applying torque to turn bolts, nuts or other items designed to interface with a wrench.