SLYSTEEL has shown prototypes of their Shark Tooth Rescue Knife publicly before but they recently showed it in action for the first time (video below).
The knife is very much like their original Shark Tooth Tactical Knife with its full integral finger guard and angular American Tanto blade shape. The biggest difference is the addition of bolt-on, toothed, gear-like structures to the side of the blade. These “gears” allow the user to plunge the knife into sheet metal (like vehicle body panels) to a consistent depth and then lever the knife through the steel like a can opener. This action can be seen in the video below along with a demonstration of the glass breaker.
The knife shown in the video above is a prototype. Stay tuned for pricing and availability details on the production version.