8pcs Brass Feeding Wheel 1.75mm Filament Extruder Drive Gear For 3D Printer Extruder Pulley

Specifications: Material: Metal Inner diameter: 5mm Base outer diameter: 12mm Base height: 5mm Overall height: 13mm Knurled valley bottom diameter: 6mm Knurling groove depth: 1mm Knurling shaft length: 8mm Knurled face length: 6mm Operation temperature: 250 For: 1.75mm Filament Application:3D Printer Filament Extruder Pulley Package included: 8 x Feeding Wheel Extruder Drive Gear