Cutter with precision gasket

The utility model discloses a cutter with a precision gasket. The cutter comprises a rectangular base (1), wherein a support (2) is arranged on the two sides of the rectangular base; the top of the support is connected with a wheel axle (4) through an eccentric wheel (3); a handle (5) vertical to the axis of the wheel axle is arranged in the middle of the wheel axle; two clamping pieces (6) taking the handle as the center of symmetry are further connected onto the wheel axle in a sleeving mode; the bottoms of the clamping pieces are fixedly connected with a cross beam (7); the bottom of the cross beam is fixedly connected with a blade (8); through holes adaptive to the outer diameter of the support are respectively formed in the two ends of the cross beam, so that the cross beam moves up and down when the handle is rotated. The cutter has the beneficial effects that a part of pressure difference can be counteracted when the blade is used for cutting downwards, so that the precision gasket is not deformed afte