Apakah saiz wrench secara normal

Wrenches: Gabungan StandardWrenches(1/4, 5/16, 11/32, 3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 13/16, 7/8, 15/16, 1) Gabungan MetrikWrenches(6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19) Kacang Flare StandardWrenches(3/8, 7/16, 1/2, 9/16, 5/8, 11/16, 3/4, 7/8) Nota: Setiapwrenchboleh menggabungkan duaSaiz.