Function:Spring-loaded ball at male end retains sockets securely and prevent them from dropping. And the Socket head lock onto ratchets and extensions, can apply more leverage and torque.
Material:Square drive extension bar adopting CR-MO material, reinforced it's strength and durability for multiple use to withstand torque. Portable to easy carry, powerful solution to your problem.
Installation Instructions:Simple to use. Socket extension tool can be used with sleeve and wrench to handle a variety of job applications.
Please Notice:Please allow slight dimension differences due to different manual measurements.