1. 1.34 pieces Eshaped star bit socket: chromium vanadium steel forging, hardness, large torque, complete specifications. 2. Chrome vanadium steel forging: various specifications. 3. Forged from chromium vanadium steel: overall heat treatment, strong impact resistance, long service life. 4. Product structure and function introduction: craftsmanship, quality and complete specifications. Applications and practicality Automotive and maintenance: suitable for installation and removal of Eshaped star fasteners on engines, transmissions, and other components that require torque and reliable grip. Machinery and equipment assembly: ideal for quick disassembly and reassembly of industrial or workshop equipment with compatible star fasteners. Bicycle, motorcycle and household projects: supports maintenance tasks such as crank bolts, rotor attachments, and other fasteners that benefit from durable, heattreated steel sockets. Key attributes to note Material: chromium vanadium steel forging for enhanced hardness and torque capacity. Surface and treatment: overall heat treatment for improved impact resistance and longer service life. Range: various specifications available to fit different fastener sizes and applications. Function: designed to provide reliable performance, strong torque transmission, and durable service in demanding use scenarios.