Q: What is the diameter and length of the Original, Pro, 7-String and SpeedLoader Tremolo Arms?
A: The diameter is 6 mm and the length is 80 mm
Q: What are the standard allen wrench sizes for each system?
Floyd Rose Original, 1000 Series, Special, Custom Shoppe, 1984: 2.5 mm & 3 mm
Floyd Rose Pro: 2 mm, 2.5 mm & 3 mm
Floyd Rose Speedloader: 3 mm, 2.5 mm & 1.5 mm