This Dual Drive Extruder utilizes an internal gearing ratio of 3:1, together with precision CNC-machined hardened steel drive gears, gives you a compact powerhouse for all your applications. Whether you require high resolution prints with small nozzles or high-flow prints with big nozzles the optimized gearing ratio combined with our industry leading drive gears provides unparalleled pushing power and lightning fast retractions in a lightweight and compact package.

Please check the images to ensure these will fit your steppers gearing. The gear teeth must face towards the stepper, not away. These are aimed at the Creality Ender-3 and Creality CR-10 series printers, they should also work with other 3D Printers utilizing a similar extruder setup.