JEEIJ 1pcs 10 mm 12 mm 16 mm 20 mm Hohle lineare Welle, 100-800 mm Innenloch 4 6 10 12 mm Härten verchromte lineare Bewegungswellenstange for CNC Teile (Color : 20mm, Size : 200mm) : Amazon.de: Gewerbe, Industrie & Wissenschaft
Xnrtop 8mm to 10mm Shaft Coupling 25mm Length 19mm Diameter Stepper Motor Coupler Aluminum Alloy Joint Connector for 3D Printer CNC Machine DIY Encoder(Pack of 2): Amazon.com: Industrial & Scientific