Straight compression type boring cutter with long cutter arbor

The utility model relates to a boring cutter, and particularly relates to a straight compression type boring cutter with a long cutter arbor. The boring cutter comprises a cutter arbor, a cutter head is arranged on the front end of the cutter arbor, a cutter handle is arranged on the rear end of the cutter arbor, the front end of the cutter arbor is removably connected with the cutter head through a connecting mechanism, the connecting mechanism comprises a tip cone and a fixed table arranged on the front end of the boring cutter, and the fixed table is located in the front end of the tip cone. According to the straight compression type boring cutter with the long cutter arbor, a removable connection is adopted between the cutter head and the cutter arbor, machining precision and roughness can be guaranteed, and the cutter head can be replaced after the service life of the last cutter head ends, re-utilization of the cutter arbor is achieved, so that the service life of the cutter arbor can be 2-3 times longer than the original service life, and the manufacturing cost is reduced.