This brass drive gear replaces the plastic ones used in most extruders. It's very strong, will not slip and doesn't melt. Perfect for heavy duty extruders, extending the lifetime an increasing the reliability of your extruder.
ReprapWorld is the number one webshop for all your reprap supplies for your 3D printer. We have a large collection of 3D printer components, from our famous electronics lines to filament from our own production. And everything is at a very competitive price!