I didn’t know where to post this, but I hope the watering hole is okay, if not the moderators can move it to somewhere appropriate. I am looking for machinests who are experienced in turning down aluminum tubing. I need precison turned aluminum tubing to use as mandrels. They have to be within a 0.002” tolerance. The length at 72” and wall at 1/4” or 1/8”. If need be, I can order the tubing as I know where to get it for cheap. This is going to be 6061 aluminum.