1/4 (6,35) - 5/16 (7,938) - 3/8 (9,525) - 7/16 (11,112) - 1/2 (12,70) - 9/16 (14,288) - 5/8 (15,875) - 3/4 (19,05) - 7/8 (19,05) - 7/8 (22,225) - 1" (25,4) - A richiesta 1" 1/8 (28,575) - 1" 1/4 (31,750)