# STwrench introduction

The STwrench is a torque wrench that can be used both for production and for quality control. Configurations of parameters can be made via the controller or via ToolsTalk 2.

The STwrench can be connected to a controller using a wireless connection. The STwrench can be configured through the controller GUI, the web GUI or the ToolsTalk 2 GUI.

The STwrench is configured in the Tightening section and uses the same workspace and menus 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 the RBU of the type Production.

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

The STwrench has several programs for production tightening and for quality control. More details about the programs, strategies and the parameters are given in the STwrench user guide.

The STwrench can only support tightening programs which are supported by the tool, that is, Wrench-production and Wrench-quality.

Controller features, such as the Low Reaction Tightening Strategies and controller-wide functions among others, require licenses distributed through the Functionality Management System (FMS). Whereas configuration of features is possible without specific licenses, the assignment and use of those features will require the correct license to be installed on the controller. Please refer to Licenses (FMS) for more detailed information on licenses.