[4mm to 5mm]

[6mm to 6mm]

Item Name : Motor Shaft Coupling;
Ideal for RC Model motor,widely used in model shaft connection.compatible with RC DIY Airplane Boat Robot.
Made of high quality brass,durable in use.
Well made,a good Compatible with your old or broken one.
Easy to install and remove.
A variety of sizes available to be chosen

Material: Copper
Thread Size: M3
Inner Diameter: (Size Optional) 2mm-2mm/3mm-3mm/3mm-4mm/3mm-5mm/3mm-6mm/3.17mm-3.17mm/4mm-5mm/5mm-5mm/6mm-6mm
Outer Diameter: 9mm.
Height: 20mm
Quantity: 6Pcs
Net Weight: 9g

Package Includes:
6 x shaft motor coupling coupler
24 x Screws.