Upgraded one-way bearing screwdriver designed for fast, low-effort prop and motor maintenance. Engineered for FPV racers and hobbyists who need a reliable, compact tool that reduces stripped nuts and speeds routine adjustments. Key benefits Effortless tightening and loosening: The upgraded one-way bearing bushing lets you spin the driver quickly in one direction without re-gripping, making prop nut changes faster and less fatiguing. Accurate, secure fit: Engineered metal socket and fine workmanship provide a stable feel and consistent torque to avoid over- or under-tightening. Multi-purpose convenience: 4-in-1 functionality covers propeller nuts and 1.5 mm and 2.0 mm hex socket screws, reducing the number of tools you carry. Durable construction: Metal body and upgraded bearing deliver reliable long-term performance for frequent field use. Features One-way bearing design for smoother, faster adjustments Fits propeller nuts plus 1.5 mm and 2.0 mm hex socket screws Metal construction with precision socket for a secure fit Upgraded bearing bushing for improved longevity and consistent operation Compact, tool-bag friendly size for on-the-go repairs Practical use scenarios Race-day pit adjustments: Quickly swap or tighten props between heats without fighting the driver or stripping nuts. Field maintenance and troubleshooting: Carry one compact tool to handle prop nuts and small hex screws on motors, frames, and components. Bench repairs and assembly: Use the stable, secure socket and reliable torque for assembling motors or tightening engine hex nuts during setup. Why this tool matters Saves time: One-way bearing speeds repetitive turns during prop changes. Reduces mistakes: Secure socket fit and consistent torque lower the risk of stripped or improperly tightened fasteners. Simplifies your kit: Four functions in one compact tool mean fewer items to pack and manage. Compatibility and performance Specifically designed for FPV racing engine hex nuts and common small hex socket screws (1.5 mm, 2.0 mm) Built for the demands of hobbyists and professional racers who need dependable, repeatable performance Includes: Upgraded one-way bearing screwdriver with 4-in-1 functionality (propeller nut compatibility; 1.5 mm and 2.0 mm hex sockets) and durable metal construction.