Rough boring tool with replaceable tool card

The utility model provides a rough boring tool with a replaceable tool card. The rough boring tool comprises a tool body and the tool card which can be detachably arranged on the tool body, wherein the tool card comprises a tool card body, a blade, a fixing screw and an adjusting screw; the blade is arranged on the tool card body; a mounting groove used for containing the tool card is formed in the tool body; the fixing screw is longitudinally arranged to fasten the tool card body in the mounting groove; the adjusting screw is transversely arranged to adjust the transverse position of the tool card body in the mounting groove. The tool body of the same rough boring tool can be used for machining different products by simply replacing the tool card, so that the purchasing number of the tool bodies is reduced, and the cost is reduced.