Auto checking fixture inspection tool is a professional measuring tool used for accurate measurement and inspection of cars. The main body of the gage includes the gage base, the body and the mounting part. The base and the body are usually made of epoxy resin or aluminum. In the product verification stage, automotive checking fixture can play a key role, especially in the first trial assembly stage of batch parts. Gage manufacturing is usually made of aluminum, resin or iron parts, taking into account daily maintenance and service life, it needs to be regularly maintained and treated. The main role of automotive inspection tools is to ensure the accuracy and quality of automotive parts in the automotive manufacturing process. The structure of the tester base and the vehicle body surface is stable and reliable, which can ensure the accuracy and precision of the measurement. Therefore, the automobile inspection tool is an indispensable and important tool in the automobile manufacturing.