Sperzel tuning keys offer our unique design and precise machining tolerances to eliminate shaft wobble and provide minimum backlash and endplay, which greatly reduce your guitar's tuning problems. Our housing extends further up the shaft with the bushing threads on the outside, keeping the string post solid.All guitar models are easily reversible, allowing con... Read more
Sperzel tuning keys offer our unique design and precise machining tolerances to eliminate shaft wobble and provide minimum backlash and endplay, which greatly reduce your guitar's tuning problems. Our housing extends further up the shaft with the bushing threads on the outside, keeping the string post solid.All guitar models are easily reversible, allowing conversion to left-handed or custom configurations. Sperzel has been manufacturing staggered string posts since the late 1970s, allowing for better pull through the nut and reducing the use of string trees on six-in-line guitars with flathead stocks. Guitars with tilt-back head stocks use all one post height; our years of experience will help you determine the height you need. This is important to know when ordering the correct set of keys for your guitar - staggered for flat; non-staggers for tilt-back.Our unique design allows you to choose the style of housing (or body), Enclosed or Open Back, and also what model string post, Trim-Lok, Sound-Lok or Solid-Pro, is right for you. Custom builders welcome. Collapse text