Atlas Copco BLM LABwrench The BLM LABwrench enables effective quality control through measurement of residual torque and evaluation of the measurement data. The tool features a clear and easy to use graphics/text display. If your intended use is for quality control only (residual torque check), then LABwrench will be ideal for your needs. It has all the features of the LABwrench Gyro, except the gyroscope. - Graphics/text display together with simple intuitive software icons. - Alarm function pre-settable in three different thresholds, with three LED’s (yellow, green, red) and buzzer. - The end head of the LABwrench can be used with reversible ratchet or spanners where socket cannot be used. - Serial output RS232 for connection to a printer or PC. - The LABwrench can work “stand alone” or in connection to Torque Supervisor software.