The best blade i've ever used. It cuts through the heaviest if metals with no issues. The only thing these are not quite the best at are hardened bolts. Great reciprocal saw blades from irwin.

A junk blade. They are only good for cutting exhaust tubing.

These blades are used for pruning and in my case, tree root cutting. Cuts through thick maple, walnut, elm. Used these to saw shrub roots.

Outstanding blade for the price. Sharp teeth, durable. Throughly satisfied and recommend.