combination spanner with rachet in ring side. Material: 40CR. Gear: 50CR-V. 72 teeth. 8pcs(8,10,11,12,13,14,15,19mm) combination spanner with rachet in ring side. Material: 40CR. Gear: 50CR-V. 72 teeth. 8pcs(8,10,11,12,13,14,15,19mm) 8pcs Gear wrench set