Worm material: 40CR quenched and tempered hardness HRC25;
worm
Brass Worm Gear Set – 0.5 Modulus 20T 20:1 Reduction Rate 3mm 4mm Hole Diameter Right Rotation Drive Gear Box Wheel Shaft Kit (Rod-3mm bore, Gear-5mm bore)
Durable Brass Material – Wear-resistant and long-lasting
Urban Worm Bag Worm Composting Bin Version 2 – Easy Harvest with Fully Removable Zipper-Free Bottom
Feed through top and collect castings from bottom. No separating worms from trays. It’s that simple.