Hi I have a pair of aluminium bar ends sliders which I'd like turned to reduce the diameter for a 10mm section of the bar end. This is so I can clamp on some bar end mirrors. Does anyone know of someone who may be able to assist, possibly a hobbyist? To me it seems like an easy exercise for someone with a metal turning lathe. I've tried engineering companies and it is just not worth it. Any advice pointing me in the right direction would be appreciated.