Kluson KB3 Keystone Guitar Tuning Machines – 3-Per-Side Bolt Bushing Nickel April 20, 2011/in All About Guitars /by sheetmusic$67.50 New “16:1 gear ratio. 25/64″” shaft size.”Kluson KB3 Keystone Guitar Tuning Machines – 3-Per-Side Bolt Bushing Nickel http://www.sheetmusicdaily.com/wp-content/uploads/SheetMusicDaily-300x53.jpg 0 0 sheetmusic http://www.sheetmusicdaily.com/wp-content/uploads/SheetMusicDaily-300x53.jpg sheetmusic2011-04-20 12:14:382011-04-20 12:14:38Kluson KB3 Keystone Guitar Tuning Machines - 3-Per-Side Bolt Bushing Nickel