Triple square driver bit, also known as XZN. 12 point internal spline driver. 1/2" hex shank.
Often found in automotive high-torque applications, such as cylinder head bolts on German autos.
Triple square driver bit, also known as XZN. 12 point internal spline driver. 1/2" hex shank.
Often found in automotive high-torque applications, such as cylinder head bolts on German autos.