So in reading all of this thread, I am struck by the fact that no one has not explained how to use a C-clamp and a socket to use as a cotter press. We used that set up until I could buy the Var tool. However the filing as described is fairly well described and does indeed make sense from a mechanic's point of view. Cottered cranks are not really difficult to repair / replace. I find that getting the right size cotters is the more difficult part of the repairs, rather than getting the cotter cut correct. just an observation, Smiles, MH