ISO 2768-2 is a standard that provides general tolerances for linear dimensions and angular dimensions in engineering drawings. It helps ensure that parts fit together correctly by specifying acceptable variations in size and shape without the need for detailed tolerances on every dimension. This standard is particularly useful in manufacturing and construction, as it simplifies the design process and reduces the risk of errors. By following ISO 2768-2, engineers and manufacturers can achieve consistent quality and compatibility in their products while saving time and resources during production.