Graphtech Ratio Tuned Electric Guitar Machine Heads | Classic | Black

Ratio Tuned Machine Heads are the first and only machine head to incorporate the different string gauges into the tuning equation.  Graphtech balanced the individual gear ratios to each string and dramatically simplified the tuning process.  No more overshooting the G string or twisting away on the high E string.  With Ratio, each half key turn equals one semitone change on all strings!  Quicker, more accurate tuning on every string.

Ratio machine heads fit most major acoustic and electric models in both 3 + 3 and 6 in-line headstock configurations.  There are four button options: Standard, Contemporary, Vintage and Contemporary mini – all with durable triple-plated finishes including chrome, gold, black and nickel.  Unlike other machine heads, Ratio gears are made from hardened steel to precision tune your instrument for years and years.

The PRN-2731-B0 is a set of Ratio Tuned Machine Heads for an electric guitar that uses six inline tuners.  It has a classic shaped button, has a two pin casing and is finished in black.