This hardened steel knurled gear replaces the standard stainless steel one that comes with every Titan extruder.
Although the Titan's filament drags and gears wear out at a slower rate than the nozzles, with use of abrasive materials, such as carbon-fiber filled filaments, wear could become an issue for these parts as well.
Hardened steel filament gears effectively prevent wear, even when printing with the most abrasive materials over a long period of time.
