You know you can check settings with the Miller weld calculator right??
So that weld is called a FILLET weld... and on .25 (1/4") steel ----
Miller calls for 1/8th Tungsten -- with a 1/2" torch cup -- 3/16" fill material -- 250 to 325 amps -- 13 CFH gas flow -- with a welding speed of 5" per minute.
My little Miller Dynasty 200 DX won't even go that high...