New Tuner Specs

http://g-gotoh.com/international/product/se700.html

https://www.stewmac.com/Hardware_and_Parts/Tuning_Machines/Solid_Peghead_Guitar_Tuning_Machines/Grover_181_Sta-Tite_97-18_Series_3and3_Tuners.html

https://www.stewmac.com/Hardware_and_Parts/Tuning_Machines/Solid_Peghead_Guitar_Tuning_Machines/Waverly_Guitar_Tuners_with_Butterbean_Knobs_for_Solid_Pegheads.html

https://www.stewmac.com/Hardware_and_Parts/Tuning_Machines/Slotted_Peghead_Guitar_Tuning_Machines/Waverly_Guitar_Tuners_with_Ivoroid_Knobs_for_Slotted_Pegheads.html

Schaller GandTune

Center distance for screw holes…Gotoh SE700 – 0.937” / Grover Sta-Tite 18:1 – 1.010” / Waverly solid headstock 1.000” / Schaller GrandTune – 1.000″

Tuner shaft size…Gotoh SE700 – 0.250” / Grover Sta-Tite 18:1 – 0.249” / Waverly solid headstock 0.249” / Schaller GrandTune – 0.236″