Inspection standards for machining shall be implemented according to the requirements of drawings. For example, the dimensional requirements shall be accepted according to the dimensions marked on the drawings. If the tolerance value is not marked, you are required to judge the level of free tolerance and the types of product acceptance standards implemented in your industry. That's more. Inspection and acceptance of machining include material acceptance, physical and chemical inspection, mechanical performance test after heat treatment, dimensional inspection after machining, etc.