1、[Powerful Drive] Powerful 9.5:1 drive ratio provides instantly strong driving force, with extrusion force exceeding 60N. Precise gear ratio, increased contact area, reduced slippage and wear. Supports 180mm per second high speed printing and stable output. 2、[Versatile Material Support] Our 3D printer extruder can print with standard 75mm filaments such as PLA, ABS, PETG, TPU, PP, PC, Nylon, PEEK, PEI, etc. 3、[Wide Compatibility] The 3D printing extruder is compatible with models like for CR 10, for CR 10S, for Ender 2, for Ender 3, for Ender 5, ensuring an easy fit for most 3D printers. 4、[All Metal Design] The extruder kit adopts all metal design that provides durability and ensures long term reliable performance, ideal for all your 3D printing needs. 5、[Multi Functional] This aluminum alloy extruder is switchable between long and short distance printing, meeting different printing needs. 1 x 3D Printer Extruder Item Type: 3D Printer ExtruderMaterial: Aluminum AlloyTransmission Ratio: 9.54647:1Progress Value: 25.12Pulse: 562Drive Gear: 10Reduction Gear: 44Extrusion Gear: 37Mounting Hole: 2 x Dia 3.1mm, Center Distance: Approx. 43.5mm/ 1.71inSupport Filament Diameter: Approx. 1.75mm/ 0.07in