When hydraulic or pneumatic torque wrenches are used on applications, it is common for the bottom nut to turn and prevent the proper torque application. The React Back Up Spanner prevents the bottom nut from turning, so torque is quickly and accurately applied.
The “React” fixes to the nut, removing the need to hold the spanner in place. In doing so, the product aims to greatly reduce the number of hand and finger injuries caused by this operation.
Safety comes first.