Shaft, Changer, S12
Shafts are made from 1018 CRS, is Ø.3115" in diameter and is 3.687" (3-45/64") long for the 10 string castings and 4.437" (4-7/16") for the 12 string castings.
Shaft is polished with 500 grit paper. The miniscule pitting is in the surface of the material and serves to help retain lubricant.