Professional piano tuning and repair kit, complete with a storage bag for convenient use. The kit contains a carbon fiber piano tuning wrench, a carbon fiber extension accessory, an aluminum alloy tail ball, two short silent tools, two long silent tools, and a tool storage bag. The tuning wrench is equipped with a stainless steel sleeve and undergoes heat treatment for enhanced durability. This tool set is designed for home tuning of grand pianos and upright pianos, and can be easily operated with the assistance of tuning software