the problem you have is not uncommon in workshop environs however on the drawing you need to accurately specify what you weant done in your case specify on the drawing a radial surface this will denote the cutter must be truly flat then on your machining symbol from the top leader line ie the...
hi,
the best thing i can recommend to you is too investigate the Machinery's hankbook this contains general guides to cutting speeds and feeds isbn no#0-8311-1155-0 for most metal forming/machining proceesses if you have an oddball material to machine refer back to the tool manufacturer.