Sinoblu D20 L25 4mm to 5mm Shaft Coupling Aluminum Flexible Spider Coupling Shaft Coupler for Engraving Drilling Milling Machine 4mm to 5mm Diameter 20mm Length 25mm
- Wide Range of Usage: Flexible Shaft Coupling is Suitable to Offset Axial, Radial and Angular Displacements and Dampen Vibrations and Torque Shocks for 3D Printer DIY Encoder CNC Router Machine Servo Stepped Motor and Engraving Drilling Milling Machine.