Sperzel's rear thumbscrew locks the string, making these machines ideal for tremolo guitars. For 3-left/3-right pegheads.
Cast gear housings with sealed lubrication. Single pin mount keeps tuner from rotating, no mounting screws needed. Recommended for 9/16" - 11/16" (14.29mm - 17.46mm) thick pegheads.
• 12:1 ratio
• 10mm (13/32") diameter pegholes required
• Removable metal knobs
• Threaded peghead bushings included
• Sets of 6