A sharp butcher knife cuts rib bones in its initial stages. and as well for cutting rib bones, a combination of tools can also be effective:
Boning Knife: This is a thin, sharp, and flexible knife that is excellent for separating meat from bones and for making precise cuts. It’s ideal for trimming the meat around the rib bones.
Cleaver: For actually cutting through the rib bones, a heavy-duty cleaver is often used. Its weight and sharp edge make it easier to chop through bones without requiring excessive force.
Saw: In some cases, especially for tougher or larger bones, a meat saw (either hand saw or electric) is more appropriate. This is especially true if you need to cut through thicker bones or make more precise cuts through the ribs.