We wouldn't recommend this, but as a last resort.The only metal that they could possibly cut would be maybe the outer skin of a car door, the car hood, the trunk deck. Nothing like a "B" post, hinge, bumpers. There are saw blades out there that are made to do those kind of heavy metals, we'll give you 2 different blade numbers you cn look at on our web site; Tempest Tech Ventmaster blades, TV-406-074 and TV-406-003 this last blade is an abrasive blade. .

Bg

Bill, yes these blades will cut metal and wood, they won't cut steel I beams, these blades are designed to be used for ventilation purpose's cut holes in the roof walls of a building, they'll cut a light metal that you would find in a home construction, walls,etc. they won't cut steel bars in a window frame, or sliding steel doors on business, it you want a blade that will cut these kind of things try a Fire Hooks Husky Blade

Butch