Gotoh SG301-20 MG-T Locking 3L/3R B; SG301-20-BC L3+R3 MG-T locking Set of Tuners for Electric & Acoustic Guitar; Gotoh MG-T Traditional Locking System with a knurled screw on the back of the machine head; 6 pieces; Configuration: 3 Left/3 Right; Construction: Closed Type; Buttons: Kindney Metal; Gear Ratio: 1:18; Shaft Length (to string hole): 20 mm (0,79"); Bore: 10 mm (0,39"); Mount: Screw(S) & Threaded Hex Bushing ; Screwhole Angle: 90°; Included: Mounting Screws, Washers & Threaded Hex Bushings; Finish: Black; Made in Japan