All instruments come standard with either Rubner or Schaller tuning machines. There are many options available to customize the instrument further, including Alessi, Gotoh, Sloane, Scheller, VS Tuners, and Perona. A good quality set of tuning machines will operate smoothly, stay in tune, add an elegant touch to the instrument, and will last a lifetime or more. I can help you find the right tuning machines for your instruments. Please view some of the options that are available.