0.5 Modulus 40 Teeth Brass Worm Gear Wheel & 5mm Hole Dia Worm Gear Shaft Kits 1:40 Reduction Ratio with Screw

0.5 Modulus 40 Teeth Brass Worm Gear Wheel & 5mm Hole Dia Worm Gear Shaft Kits 1:40 Reduction Ratio with Screw

Aliexpress UK