​98F29103004000 is a precision aviation maintenance tool compliant with AS9100D quality standards and FAA/EASA regulations, dedicated to aircraft engine hydraulic and pneumatic systems maintenance.It functions as a high-precision torque wrench, specialized in accurate torque application for fasteners of hydraulic valves, actuators and pneumatic components during MRO assembly and disassembly. It delivers calibrated torque values to meet strict aviation specs, prevents over-tightening or under-tightening of fasteners, avoids thread damage, seal deformation and component loosening, and ensures leak-proof and vibration-resistant connections under extreme flight conditions.Made of high-strength alloy steel with precision torque control mechanism, it resists wear and corrosion, working stably at -55℃ to 200℃. Weighing 0.85kg, it features clear torque graduation, adjustable setting and ergonomic handle for easy operation, providing accurate, repeatable torque output. It is a critical tool to guarantee fastening integrity and overall engine system operational safety and reliability.