This is a evolution of the MK7 Drive Gear. The smaller diameter gives 35% more power. If you need a replacement gear, or you're designing your own custom project, this is the part! Very sharp teeth to dig into the plastic filament for the best grip ever. Our MK8 Drive Gear was Best In Test in the benchmark test from Airtripper. You can find the benchmark test here: 3D Printer Extruder Filament Drive Gear Review & Benchmark Made by precise machining of stainless steel. The drive gear includes a M3 set screw and is suitable for typical NEMA17 motor shaft (5mm).
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