Sperzel Tuners are made in the USA of anodized aluminum for light weight and strength. Aluminum also allows a wide range of anodized colors in solids or combinations. Sperzel tuning keys are designed to advanced standards and have the widest possible range of colors and styles in the industry. Among the best features of Sperzel Tuners from the standpoint of a builder, is that all of guitar model tuners are reversible. This means the one needn't buy specific sets for 6-in-line headstocks, 3 and 3, 4 and 2 or left handed.
Sperzel tuning keys are machined from solid billet aluminum for light weight and held to precise tolerances and quality checks to produce a precision tuning key that eliminates shaft wobble, endplay and minimum backlash. Their Trim-Lok model actually cuts the sring for you and eliminates the need to wind, making changing the strings a breeze.
Sperzel has been manufacturing staggered string posts since the late 1970s and come in single height posts as well.