i was tearing apart my grand am for racing and of course the saw all is a very important tool in the process so needing blades i went out and got the milwaukee "the torch" this was the best sawzall blade i have ever used it cut everything and anything we put at it from grade 8 seat belt bolts to exhaust systems to sheet metal to safety glass it cut it all and for the whole car i only used one blade so if you ever need a good metal/rescue blade say for you fire department or something of the sort or even tearing apart a race car then give these blades a good look