Early 80s Fender lock nut with built-in fine tuners. : r/guitars
How to Fine Tune Your Floyd Rose Guitar | 5 Simple Steps - YouTube
D-Tuna D-Mystified: How to Set Up an EVH D-Tuna | Sweetwater
Amazon.com: KAISH Electric Guitar TP-6 Style LP Bridge Stop Bar Vintage 70's Bridge Tailpiece with Fine Tuners/Studs for LP Les Paul/SG/ES Electric Guitars Chrome : Musical Instruments
1980's Kramer Striker 300ST Electric Guitar + REAL Floyd Rose w/o fine tuners | Reverb