They sell metal blades for those, wood blades...
bone blades? I’m not sure...
Essentially. They're used in the cordless models for field quartering elk, etc.
Rocky Top Ripper Reciprocating Saw Blades Converts standard reciprocating saw into meat saw
Three-blade set .063"-thick steel Turn any reciprocating saw into a venison-processor's best friend. This three-pack includes 12", 9" and 6" blades. The 12" blade is ideal for elk, moose, bison and other big jobs. The all-around 9" blade is great for deer, hogs and antelope. Take the 6" blade into the field to clear shooting lanes and limbs from around the stand. All have a reverse-tooth design that displaces bone and meat away from the saw for nearly effortless cutting. They're made of .063"-thick steel, making them the strongest replacement blades on the market. Fit all popular brands of reciprocating saws.
Cabela's. Other places have same or similar.