35 - 9,525 mm = 3/8" 40 - 12,700 mm = 1/2" 50 - 15,875 mm = 5/8" 60 - 19,050 mm = 3/4" 80 - 25,400 mm = 1" 100 - 31,750 mm = 11/4" 120 - 38,100 mm = 11/2" 140 - 44,150 mm = 13/4" 160 - 50,800 mm = 2"