# STwrench

The STwrench is connected to a controller using a wireless connection and is configured through the controller GUI or the web GUI.

The STwrench is configured under the tightening menu in the same way as the other tightening strategies.

The STwrench has a Rapid Backup Unit (RBU). The RBU defines the wrench function and stores the tightening programs. The controller supports currently only the RBU of the type Production.

The STwrench End-fitting tool (socket) contains a RFID TAG with a programmable number. This wrench uses this number to automatically recognize the tool and which program that can be used. The RFID TAG also stores the torque and angle correction coefficients.

The STwrench has several programs both for production tightening and for quality control.

The STwrench can only support tightening programs supported by the tool (Wrench Production and Wrench Quality).

For more information about the STwrench, see the STwrench User Guide (printed matter number 9836 4134 01).

In this Section

- STwrench Start Step Parameters
- STwrench Rundown Step Parameters
- STwrench Tightening Step Parameters
- STwrench Loosening
- STwrench Stop Step Parameters