Bob Sperzel explains: "Our research and dedication to producing special machine heads was
We are proud Sperzel Tuning Keys are used throughout the world and are
considered by many to be the best. A product of the USA, competing
with international brands, they are referred to as made the American
Sperzel tuning keys consists of advanced design standards. Every
component is designed to provide stable performance and reliable
action during combined movements. Our standards do not allow loose or
floating components that are evident with older, traditional stock
Eliminating age-old tuning problems and improving tuning capabilities
was recognized on the back cover of the October 1979 issue of Guitar
Player magazine, where it was described as "the first significant
advance in guitar tuning capabilities."
Your ultimate performance is a reflection of the freedom to be
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. Our Trim-Lok model offers no tying or winding around
string posts, greatly improving your tuning capabilities for playing
style and enjoyment. Rid yourself of Tuning Torture Syndrome!
Aluminum also allows us to offer a wide range of anodized colors in
solids or combinations. Anodizing is a very durable finish that does
not affect the integrity or precision of the tuning key.
Break out of the old 1918 mold age and step up to the New Age machine