With just about any tool you use for cutting, the blade can make a big difference. I bought the 5-pack, and have used them on my recip saw for several years. I have cut galvanized pipe, stainless steel, hardened steel bolts, and wood. I also have a set of Milwaukee demolition blades. I love Milwaukee in general, but my well-used Lenox blades cut better than new Milwaukee blades, hands down. Great blades make a difference. These are great blades. Get 'em!