RC Boat 50mm 5 Blade Brass Nozzle Propeller Pair For RC Tugboat Models CW And CCW M4 Shaft Tin Soldered RC Marine Accessories

• 50mm brass 5-blade propeller pair for ducted RC tugboat propulsion
• Includes CW and CCW rotation for balanced twin-motor setups
• Solid brass with tin-soldered blades for durability and marine realism
• M4 shaft bore fits standard 4mm threaded drive shafts
• Grub screw fixing ensures secure hold during operation

Each propeller features a 50mm blade diameter, a 9mm hub diameter, and an M4 shaft bore, making them compatible with 4mm threaded drive shafts. The blades are hand-soldered using tin welding for durability, ensuring long-term use even in challenging conditions. The grub screw fastening (requires a 1.5mm hex key) keeps the propellers securely fixed during operation. This set includes one clockwise (CW) and one counterclockwise (CCW) propeller, ideal for twin-screw configurations that demand accurate rotational balance and precise control. Propeller Diameter: 50mm Hub Diameter: 9mm Height: 19mm Shaft Hole: M4 (fits 4mm threaded shaft) Material: Brass Manufacturing: Tin-soldered Fastening: Grub screw set (requires 1.5mm hex wrench) Rotation: Includes one CW and one CCW (stern to bow view) Application: Ideal for ducted prop setups in RC tugboats and scale vessels