This torque wrench set is made of fine quality CRV chrome vanadium alloy steel material, corrosion resistance, and high hardness, with strong torque, and not easy to break. The 72T ratchet wrench design allows for easy disassembly with a minimum rotation angle of only 5°. The working torque adjustable design makes it easy to operate, and the two high elasticity springs provide flexible and accurate torque control. The set includes 16pcs complete specifications of bits and a plastics carrying box, making it suitable for bicycle repairs, workshop work, factory machinery maintenance, and other various industries.