DC 2 Blade Cooler Fan Propeller, 40mm

Hobby electronics builds often come down to small, precise components, and this 40mm Blade DC 2 Blade Cooler Fan Propeller is exactly the kind of part that makes or breaks a project. Molded from durable plastic with a 2mm center hole, it is designed to fit directly onto the shaft of small DC motors commonly used in fans, blowers and air-propelled models.

Its two-blade design at an 80mm overall diameter with 40mm blade length delivers a solid balance of airflow and stability for mini fan builds, RC boats, science fair projects and educational STEM kits. Lightweight yet sturdy, the propeller spins efficiently even at lower motor speeds, making it a practical choice for students and hobbyists working with small battery-powered motors. It is a small part, but a reliable one, exactly the sort of component that keeps a DIY build running smoothly.

• 2-Blade Plastic Propeller – lightweight and efficient design
• 2mm Shaft Hole – fits standard small DC motors
• 40mm Blade Length – 80mm total diameter for balanced airflow
• Ideal for DIY Projects – suited to mini fans and electric toys
• Great for RC Boats – useful in propulsion-style builds
• STEM and Education Friendly – popular in school science projects
• Durable Plastic Construction – built to withstand repeated use

A dependable little component for any electronics bench, this DC 2 Blade Cooler Fan Propeller 40mm Blade is ready for your next build.