Just figured this one out after reading all over the 'net that if I don't have the correct tool the best alternative is to use a hammer and a flat-head screwdriver (still next to impossible to achieve).
As you can guess by the title of the post, I was attempting to adjust the spring pre-load on my rear suspension, when I found I had no tool even resembling the one designed for the job. I went through the tools I do have and nearly by accident stumbled on this beauty:
Self Ratcheting Pipe WrenchThe handle had plenty of leverage to make this task take literally seconds (it also happens to be invaluable for plumbing scenarios
)
Anyhow, thought I'd share something I found useful
Lady Amalthea
1981 CB750C
Suffolk, VA