Modular multi -functional boring cutter

The utility model discloses a modular multi -functional boring cutter, multi -functional boring cutter comprises cutter arbor, tool bit and blade in proper order, adopts the connection structure setting in cutter arbor and the different axle center of tool bit, through adjusting different position, changes the diameter size of cutter. Compared with the prior art, the utility model discloses simple structure, low cost, and easy the maintenance, can realize a simple structure, can reduce cost and be suitable for the multi -functional boring cutter of combination formula of extensive thick, fining -off, make up into processing standard size's various boring cutters through different models, it is convenient to adjust, has still improved boring cutter life.