The SG381 tuning machines feature the accuracy and reliability Gotoh is famous for. They features a 16:1 gear ratio for precise, accurate tuning, and a die-cast enclosure that is permanently sealed and lubricated for years of smooth operation.
Gotoh HAPM is specially created for controlling a post-height of steel string guitars, in addition to locking a string easily and quickly. And prepared for all of SG/SD guitar peg series.
Combining the ability of Post Height Adjustable and Magnum Lock. Keeping the current function, locking stability has been improved with the introduction of new smaller string holes on 1st, 2nd and 3rd string posts. Locking feature gives a machine head that is the perfect choice for flat peg-head guitars equipped with Vibrato. Removing the string tree on this type of guitar is essential for tuning stability to keep in tune when in playing as it makes ultimate string tension by staggered string posts function.