33102B 0.5M Alloy Double Gear Big 33 Teeth OD=17.2mm Small 10 Teeth od=6mm Metal Pinion 33T+10T

33102B 0.5M Alloy Double Gear Big 33 Teeth OD=17.2mm Small 10 Teeth od=6mm Metal Pinion 33T+10T

Aliexpress UK