Special tooling for milling plate thickness

The utility model relates to a special tooling for milling plate thickness. The special tooling is characterized by comprising a frame, wherein a supporting plate is fixed at the bottom of two sides of the frame; thread holes are manufactured at two sides of the frame adjacent to the fixed supporting plate; and a fastener used for fastening the tubular workpiece passes through the thread hole. The special tooling has the advantages that the milling processing of the whole machining surface of the workpiece can be completed by adopting the tooling to carry out the clamping operation in one step; the pressing plate does not need to be frequently disassembled and clamped; the operation is simple and quick; the production efficiency can be improved; and the labor intensity of the operator can be lightened greatly.