Nema34 Stepper Motor Kit Speed Reducer CNC Turbine Worm Gearbox RV040/50 MD860 Drive. Please let us konw what Gear Reducer Ratio you need when you place your order. 1:7.5 1:10 1:15 1:20 1:30 1:40 1:50 1:60 1:80. Provide it when you order. 1 x Nema34 Stepper Motor Kit. This item is in the category "Business, Office & Industrial\Industrial Automation & Motion Controls\Electric Motors\Stepper Motors". The seller is "topluck001" and is located in this country: CN. This item can be shipped worldwide.