Use : Torque angle gauge for fasteners where manufacturers are specifying both torque and angle settings. With this gauge the professional mechanic can meet the demands of the new specifications to turn the fastener a specified number. Additional Information1/2"D.Additional angular movement after torque is applied.Clear, easy to read dial.Knurled knob for setting angle. Easy To Read : Angle gauges measure up to 360 degrees with 2-degree increments and 10-degree intervals; Clear, bold lines for easy identification ensures proper tightening; Easily zeroed for future applications by turning tool housing Adjustable Design : The adjustable arm has 2 different length, flexible to use. Professional manufacturing, 1/2 drive torque angle gauge has high characteristic and stable performance Professional : Designed for professional auto mechanics and heavy duty applications.