Shaft Usage: 3mm to 3mm / 0.12 to 0.12 inch
Material: Aluminum alloy;
Size: 25x18mm/ 0.98x0.71 inch( L*D)

Feature:
Set screws (Coiling Clamping);
Main Color: Silver tone
Flexibility of coupling shaft removes stress between the motor and driving components.
The shaft couplers are widely applied to small CNC machines encoding and 3D printers Z shaft coupling, simplifies the debugging difficulty.