These Sperzel Trim Lok 6 In-Line Tuners are in great shape and work fine.
Sperzel’s rear thumbscrew locks the string, making these machines ideal for tremolo guitars. For 6-in-line pegheads.
The string posts on 6-in-line sets have graduated height (no string trees needed). Cast gear housings with sealed lubrication. Single pin mount keeps tuner from rotating, no mounting screws needed. Recommended for 1/2″ – 9/16″ (12.7mm – 14.29mm) thick pegheads.
• 12:1 ratio
• 10mm (13/32″) diameter pegholes required
• Removable metal knobs
• Threaded peghead bushings included
• Sets of 6
Staggered string posts:
The Sperzel 6-in-line tuners feature 3 heights of string posts in each set. The tallest two tuners are used on the E and A strings, the medium length posts are used on the D and G strings, and the shortest two posts are for the B and E strings. This allows the E, B, G, and D strings to have a steeper angle off the nut than with traditional tuners — eliminating the need for string trees.