The software and hardware of new portable INSPECTpro torque and angle instrument create new opportunities for easier random-sample testing, process capability testing and graphical process analysis in assembly operations in order to ensure optimal quality of bolted joint assembly. The instrument is suitable for in-process random-sample testing, testing drivers and torque wrenches, testing joint components, and determining the process capability of already assembled bolted joints in combination with handheld torque/angle sensors.