d1 s e m min. G 1/8 19 20.88 6 G 1/4 22 23.91 6 G 3/8 27 29.56 7 G 1/2 32 35.03 8 G 5/8 32 35.04 8 G 3/4 36 39.55 9 G 1 46 50.85 10 G 1-1/8 50 55.37 10 G 1-1/4 55 60.79 11 G 1-1/2 60 66.44 12 G 1-3/4 70 76.93 13 G 2 75 82.80 13