Key

The utility model provides a key, which comprises a base and a weld leg, the weld leg is clamped on the base, the weld leg comprises a welding portion, a connecting portion and a fixing portion, the welding portion is attached to the lower surface of the base, the fixing portion is attached to the upper surface of the base, one end of the connecting portion is connected with the welding portion, and the other end of the connecting portion is connected with the fixing portion. According to the key provided by the utility model, the installation of the weld leg can be realized through machining,the welding surface of the weld leg does not need to be protected when the key is machined, no residue is left on the welding surface of the weld leg, the manufacturing process of the key is simplified, and the rejection rate of the key can be reduced; the welding feet are installed through machining, the positions, the number, the shapes, the sizes and the like of the welding feet are not affected by the key forming pro