The TORPEDO are 3" Wide X 12" Long Blades were developed from daily use on hundreds of different vehicles. The TORPEDO is the most used size and is perfect for slicing through wide bands of urethane. It works well in all places where you plunge cut or angle cut. !!***PLEASE NOTE:***!! This item is not compatible with any general sawzall machine. This item can and will break very easily if used with non compatible machines. Please confirm purchase compatibility prior to purchasing. If broken, please send us photos of the item and the machine you used it with. There will be no guarantee for breakage. This blade / item is only works with tool that has Sheath at the front. If blade / item leg is not inserted in the sheath and locked it will break from the tipBlade / item will break from the tip if use with regular sawzall and we will not accept return if blade / item break from the tip.