Lincoln Electric POWERARC 5500 SVM197-A Service Manual page 31

90°
end view
1/2"
(12mm)
Poor
Good
60°
20°
side view
1/4"
(6mm)
1/4"
(6mm)
4
3
2
1
1/8" (3.2mm)
45°
45°
4
3
2
1
1
2