Features: 100% Brand New. Specially designed for 1.75mm 3D printer consumables structure to drive the feeding chains. The tooth is tip but not sharp, bite closely so that the wire will not slide, not be leveled, not be broken. Outer diameter: 11mm/0.43" Bore: 5mm/0.2" Height: 11mm/0.43" Teeth Number: 26 Hexagon screw: M3 Material: Brass Package list: 2x 3D Print Drive Gear Pulley .
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