Function: Specially designed to remove and install the locking nut on front suspension strut when replace the units. Compact and simple design, easy to carry and use. Easy to Use: The strut nut sockets with cut out design allows 90° hex key to hold the strut whilst tightened to correct torque with a torque wrench.These suspension strut sockets can withstand 65-75 N. High Quality: Made of high hardened 4140 impact grade steel,with black oxide coating which is great strength, not ease bent, rust-resistance and durable to use.