I tried to cut some wheel adapters for a golf cart today, and the main body came out fine 5.75" dia circle. But the stud hole are a diferent story. They came out out of round and mis sized I was aiming for .5" Any help would be great. the material is 1/8" mild steel The machine is Plasma Cam with a Hypertherm 1250

Try this set up: use Fine Tip, 40A, 40-50ipm travel speed.

lead ins and outs are needed too