This invention relates to a ball-ender apparatus for securing to a pre-selected length wire by passing through the apparatus and being secured by a precision screw from which the wire receives medial pressure locking the wire in place. Without an expensive winding machine or winding of wire or even modifications made to musical instruments, wire can be tensioned, after the precision screw is screwed onto the wire within the clamping ball end housing to securely hold the wire in place.