Torque limiting screwdriver includes fully adjustable torque limiting screwdriver with magnified calibration scale, case and power bits. Torque range: 2 - 36 Inch-lb and 0.2 - 4NM Screwdriver provides precise torque accuracy in both right-and left-hand directions. When preset torque is reached, clutch releases automatically to avoid over-torquing. - Recessed thumbscrew at back end of handle permits quick and easy change of torque and can be sealed for production use. Magnified calibration scale is graduated in 2 Inch-lb and 0.2NM. 1/4 Inch female hex drive. Meets requirements of MIL-H26497. Calibration Certification enclosed with screwdriver.