2 Pack 4mm Flange Coupling Connector, Rigid Guide Steel Model Coupler Accessory, Shaft Axis Fittings for DIY RC Model Motors, High Hardness Coupling Connector-Silver. (2 pcs 4mm) 2 pcs 4mm sold2024 6-point socket opening provides an

6-point socket opening provides an exact fit for hex fasteners

removing stock or simply for enlarging holes

Fabricated from durable white plastic that wont rust

Round/Hex shank can use with any air or electric drill

2 Pack 4mm Flange Coupling Connector, Rigid Guide Steel Model Coupler Accessory, Shaft Axis Fittings for DIY RC Model Motors, High Hardness Coupling Connector-Silver. (2 pcs 4mm) 2 pcs 4mm sold2024 6-point socket opening provides an2 Pack 4mm Flange Coupling Connector, Rigid Guide Steel Model Coupler Accessory, Shaft Axis Fittings for DIY RC Model Motors, High Hardness Coupling Connector Silver. (2 pcs 4mm) 2 Pack Flange Coupling Connector, Rigid Guide Steel Model Coupler Accessory, Shaft Axis Fittings for DIY RC Model Motors, High Hardness Coupling Connector Silver. (2 pcs 4mm) Product Features Durable Material Ancirs coupling connector is made of fine plating steel, heat and