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Using a standard 0.250 inch hex key*, cordless drill or hand tool, you can use this universal string winder to restring your stringed instrument; bass guitar, acoustic or electric guitar or mandolin; most tuning keys fit into this. Lost yours? No worries, just print a new one.
Order in any color or material you like!
The winding stem is under development.
*Use epoxy or cyanoacrylate to fixate the hex key to the winder for best use.