Octal Tube Key Replacement Tool

Ever broken the keyway off of a favorite old stock tube? Don't throw it out! Use this keyway replacement tool and you're good to go. Simply line up the new keyway over the old and place this tool over the tube pins and that's it. Works on 6l6, EL34, 6550, 6SL7, 6SN7, 5AR4 etc... Note: make sure tube is electrically still good before installing.