The utility model provides a check ring notch combination tool which comprises a check ring carrier used for placing and limiting a check ring and a base used for supporting the check ring carrier. A carrier notch crossed with the check ring is formed in the position, matched with the check ring, of the check ring carrier; and a pressing mechanism for pressing the
retainer ring carrier is arranged on the base. The check ring is conveniently arranged in a limiting mode through the check ring carrier, the carrier notch is formed in the check ring carrier and intersects with the check ring to correspond to the to-be-
cut position of the check ring, and the check ring notch can be conveniently
cut and machined through a cutter; the
retainer ring carrier is pressed on the base through the pressing mechanism, so that the
retainer ring is in a
stable state, a rapid
cutting mode of linear
cutting is conveniently adopted, the direction and angle of a notch of the retainer ring are more easily guaranteed, and the notch is smooth and free of burrs.