[Features] ● Troublesome pull stud bolts can be easily attached and detached. ●Exclusively designed to match the shape of the pull bolt for a perfect fit and safe and secure attachment and detachment of the pull bolt. ●It can be easily attached and detached without applying much force. ●PM-BT-30T can be used with a torque wrench if an adapter is attached. (Make sure to align the “I” markings when installing the adapter.)