Product Description Adjustable TorqueVario Handle with Direct Reading Scale. 10-50 In/lbs range. 2 In/lbs increments. Ergonomic multi-component handle, light and compact. Handle sizes proportioned to optimize torque range. Audible & perceptible click when torque setting has From the Manufacturer Wiha 28506 TorqueVario-S 10-50 in-lb torque screwdriver provides precise torque for assembly and repair. Audible and perceptible click signals when torque setting has been attained. Integrated window scale displays torque value to eliminate false readings. Adjustment tool is used to adjust Torque value to prevent torque from being altered unintentionally. Each driver with 4-mm micro bit holder includes torque-setter adjustment tool, calibration certificate and instructions in a hard plastic tube.