108 -608A 英制
梅花端7/16, 11/32, 3/8, 9/32, 5/16, 1/4, 15/64, 7/32, 5/32, 3/16
开口端3/8, 5/16, 11/32, 1/4, 9/32, 15/64, 7/32, 13/64, 3/16, 5/32
108-608B公制
梅花端11, 10, 9, 8, 7, 6, 6, 5.5, 4.5, 4
开口端10, 9, 8, 7, 6, 5.5, 5, 5, 4, 4.5