Qbace 1/2 Inch Torque Wrench Angle Gauge Tool Required when servicing many late model engines that use torque-to-yield fasteners Measures angle of rotation after pre-torque in torque-angle applications The 360 degree scale is marked in 2 degree increments and intervals of 10 and 30 degrees Easily zeroed for next application by turning the tool housing Has 1/2" male and female square drives