1-100PCS MK7 MK8 Extruder Drive Gear Bore 26/36/40 teeth 5/8mm 1.75/3.0mm Teeth Brass Stainless Steel Drive 3D Printers Partr

1-100PCS MK7 MK8 Extruder Drive Gear Bore 26/36/40 teeth 5/8mm 1.75/3.0mm Teeth Brass Stainless Steel Drive 3D Printers Partr

Aliexpress UK