I don't know why they say it's for soft materials. Unless it's carbide or abrasive, most blades won't touch anything hard. I cut almost anything, but mostly steel. For that it works very well. I used to have an 8-10 blade but sometimes it was too aggressive. It may take a little longer, but I have time. The latter died when, in a long cut, he knocked out several teeth and erased the rest. It will happen. All in all a good blade.