The tightening keys are used to securely connect your interchangeable needle tips onto the cables. Simply insert the key into the lifeline hole found on each metal join at the ends of the cables, connectors or stoppers. Use the key as a handle to help you grasp and tighten the screw connection.
Includes 4 tightening keys for all M cables.
This Product was added to our catalogue on 13/10/2017.