956A7640G01 is a precision aviation maintenance tool compliant with AS9100D standards and FAA/EASA regulations, dedicated to aircraft turbofan engine MRO and ground support operations. Crafted from high-strength wear-resistant alloy steel, it resists extreme workshop temperatures, mechanical abrasion and aviation fluid erosion for stable, durable performance during frequent use. Specialized in disassembling and installing engine high-pressure compressor rotor shaft sleeves, it features calibrated clamping structures with tight tolerances to avoid sleeve deformation and scratch, critical for ensuring rotor coaxiality and rotational stability. Its compact, ergonomic design fits confined engine core spaces, works with mainstream compressor fixtures, streamlines servicing workflows, cuts downtime, safeguards compressor system integrity, and serves as an indispensable tool for reliable engine performance and flight safety.