GOTOH SD90-SL-MG-T-N New Thumbwheel Style Magnum Lock TraditionalNickel finish with greenish tuning keys 15:1 tuning ratio Vintage 11/32" headstock bushing holes required. Will not fit guitars with screw in bushings without using conversion bushings(sold separately)**. 1/4" (6.35 mm) diameter string postsGOTOH Magnum Lock string posts Includes press-in bushings and screws Gotoh Vintage Style locking guitar tuners thumbwheel locking mechanism are designed for a vintage-sized(11/32") peghole that will maintain that classic look with no drilling or modification to your headstock. These are 3 per side individual tuners just like the originals but with the Gotoh Magnum Lock system built into the string post.This is GOTOH new thumbwheel style locking tuners.The "Magnum Lock-Trad" combines class

Gotoh® Vintage Style locking guitar tuners thumbwheel locking mechanism are designed for a vintage-sized(11/32”) peghole that will maintain that classic look with no drilling or modification to your headstock. These are 3 per side individual tuners just like the originals but with the Gotoh Magnum Lock system built into the string post. 

This is GOTOH new thumbwheel style locking tuners.  The "Magnum Lock-Trad" combines classic functionality with Gotoh technology.  

**SD90 MG-T (Magnum Lock Traditional) have a 1/4" diameter string posts.  Typical conversions bushing will have 10mm OD and 1/4" ID. Search our store for item #121350768677 for new installation or #121322395395 (Allparts TK 0901-001) for upgrade installations.