Automobile accessory and high precision manufacturing method thereof

The invention provides an automobile accessory and a high precision manufacturing method thereof. The automobile accessory and the high precision manufacturing method thereof solve the problems that when an existing automobile accessory is produced, a tool edge shearing interval is set according to the stock thickness, rough edges of the existing automobile accessory are excessively long when the shaping tool edge shearing interval is used to cut the rough edges, and therefore precision of a circular hole is influenced, and a weakness portion in the middle of the existing automobile accessory warps and deforms due to shearing influences and the like. The automobile accessory comprises a sheet body, wherein bending side walls are arranged on two sides of the body, and a plurality of circular holes are formed in the bending side walls. The high precision manufacturing method of the automobile accessory includes: (1) punching a location hole; (2) punching precutting tool edges of the circular holes; (3) performi