WSTA564.5 is a professional aviation maintenance tool compliant with AS9100D standards and FAA/EASA regulations, dedicated to aircraft engine and airframe MRO as well as ground support work. It acts as a high-precision torque socket, specialized in precise torque application for high-strength bolts on engine casings, landing gear and fuselage structural joints. Crafted from premium hardened alloy steel with anti-corrosion coating, it boasts high toughness and wear resistance, resisting oil erosion and mechanical impact to ensure stable torque transmission without slippage or deformation. Its precisely machined inner hexagon ensures a tight fit with bolts, avoiding rounding and torque deviation. Compact and lightweight at 0.5kg, it fits narrow operating spaces, enabling efficient on-site operation. It guarantees assembly tightness and structural integrity, serving as an essential tool for safe and reliable aircraft maintenance.