98A54003013000 is a precision aviation maintenance tool compliant with AS9100D quality standards and FAA/EASA regulations, dedicated to aircraft engine blade maintenance.It functions as a high-precision blade profile gauge, specialized in inspecting the contour accuracy of turbine and compressor blades during MRO checks. It accurately verifies blade airfoil shapes against standard specifications, detects wear, deformation or erosion defects timely, avoids abnormal airflow and efficiency loss caused by unqualified profiles, and ensures stable aerodynamic performance of engine core sections under high-speed operation.Made of high-strength corrosion-resistant stainless steel, it resists high temperature and wear, working stably at -55℃ to 310℃. Weighing 0.38kg, its compact design fits confined engine spaces, with precise profiling for reliable testing. It is a critical tool to ensure blade integrity and overall engine operational safety, efficiency and service life.