length l nom., in mm length l min., in mm length l max., in mm 2 1.8 2.2 2.5 2.3 2.7 3 2.8 3.2 4 3.7 4.3 5 4.7 5.3 6 5.7 6.3 8 7.7 8.3 10 9.7 10.3 12 11.6 12.4 (14) 13.6 14.4 16 15.6 16.4 20 19.6 20.4 25 24.6 25.4 30 29.6 30.4 35 34.5 35.5 40 39.5 40.5 45 44.5 45.5 50 49.5 50.5 55 54.4 55.6 60 59.4 60.6