Steelman 1/2-Inch Drive 140 ft-lb Torque Extension for Impact Wrench, 8-inch Extension, Corrosion-Resistant Powder-Coated Steel, Aqua

.Prevents over-tightening - over-tightening can lead to premature failure of wheels, wheel studs, and rotors
.Flexes to limit torque - when 140 ft-lb of torque is reached the extension will flex to absorb impact and stop tightening
.1/2-inch drive - both male and female ends are 1/2-inch drive for use with heavy-duty impact wrenches and sockets
.Calibration free - predetermined maximum allowed torque, no moving parts, maintenance and recalibration free
.Powder-coated - steel powder-coated aqua for corrosion resistance and to differentiate from other extensions