High-steel-grade sleeve thread machining tool

The utility model discloses a thread machining tool for a high-steel-grade sleeve. The thread machining tool comprises a cushion block, a screwer, a chip breaker, a pressing block and a limiting check block which are arranged on a tool body. A fixing table and a mounting table are arranged on the top face of the front end of the cutter body in the width direction, a liquid outlet hole channel is formed in the mounting table, and a first liquid inlet flow channel and a second liquid inlet flow channel which communicate with the liquid outlet hole are formed in the rear end of the cutter body and the side wall close to the fixing table correspondingly; the cushion block, the screwer and the chip breaker are sequentially arranged on the mounting table from bottom to top, hole channels communicated with the liquid outlet hole channel are formed in the cushion block and the screwer, a groove communicated with the liquid outlet hole channel is formed in the bottom face of the chip breaker, and a comb tooth flow cha