3D Printer Parts Stainless Steel MK7 Extruder Drive Gear Bore 5mm For 1.75mm Hobbed Gear For Makerbot Reprap Mendel

 Note:
1.Please allow 1-3mm errors due to manual measurement.
2.Due to the difference between different monitors,there are color differences,pls take the real product as the standard!

Description:
This gear is originally designed for MK7 extruder which is used on Makerbot Thing-O-Matic and Replicator. However due to its effectiveness, durability, and wide availability, this gear is also popular among makers who use it for their own extruder designs. Eventually MK7 gear almost become a standard extruder gear for many excellent extruders.

Feature:
brand new and high quality
Special design and new style
Made by precise machining of stainless steel
The gear includes a set screw and is suitable for typical NEMA 17 motor shaft(5mm).
Inner Diameter Size: 5mm
Outer Diameter: 12mm
M4 Screw
Height: 13mm
Size(mm): 12*12*13(OD * H)