When I went to the Lincoln Motorsports Welding class (week long) they taught us sharp electrodes for inverter machines. I have a Lincoln Precision Tig 225 and use pointed electrodes for aluminum.


67 Coronet 500 9.610 @ 139.20 mph
67 Coronet 500 (street car) 14.82 @ 94 mph
69 GTX (clone) - build in progress......