Hello, I'm firefighter paramedic James Cooper bringing you today's what's on the truck Tuesday. This is a fire rescue vent saw and it cuts through wood and impact windows like butter. When using for vertical ventilation, this depth gauge allows us to cut roofing material safely without cutting the trusses below us. Just like all the other equipment on the truck, we keep it topped off and run it every single morning so that we know it's ready to go when we are.