I am trying to make spokes for a 1886 columbia 54 inch high wheeler. I think i am going to use 1/8th welding rod 316 stainless steel. I want to roll the threads with a pipe cutter. 6-36TPI. I cant figure out hwo to make a round end. I tried making a holder and die but the rod is very tuff. I just need to mushroom the end from .125 to .2. Maybe i need a better clamp idea... up for suggestions. Maybe 316 is to hard. Bicycle companies use 306 and 304 i think. Plus 2 mm wire.