Alan Ratcliffe wrote
It's not a job for a beginner, as it's not easy to cut the nut correctly and is easy to make a mistake. I usually recommend buying two nuts - learn on the first one and get the second one right. ?
You can use needle files in a pinch, but it's a lot more difficult to get right.
Otherwise it's a one time only setting, so it's often worth paying someone to get it right.
Thanks for that. I needed a nut job, but decided to have it done.
I am good with my hands, but without the proper tools, how can I blame the tools for messing up the job? ?