Posted by JasonB on 03/12/2012 16:21:11:
If Andrew Johnson sees this he may add the photos of some bosses he posted elsewhere last week.
I have seen it, and I'm none the wiser. So either the reference isn't to me, or, more worryingly, I posted something which I've completely forgotten about.
I'd either file an oval gland by hand or use the CNC mill. If I was filing I'd do it by eye rather than bother with buttons.
Regards,
Andrew