This set of fixtures is a universal type, adopting a combined design. It mainly consists of a fixture base plate, a pressure plate kit, or a magnetic pressure plate kit. The fixture base plate is equipped with M2, M4, or M6 threads of various standard specifications. Combined with freely combinable fixture components, regardless of the size, shape, and material of the workpiece, the clamping problem can be quickly solved through the combination of fixtures, improving inspection efficiency and avoiding delays during the inspection process.