I was recently working on whack of orders. I decided to rebuild my oven in the middle of it. Was cutting the angle iron and thought this blade better last or I'm screwed. Sure enough it snapped a minute later. I had an old blade kicking around that I only tried once but took it off because it sucked. I went to put it on realized the teeth were in the wrong orientation for the rotation direction which is why it didn't cut well. After checking Amazon for the quickest shipping I thought of something. The blade was inside out... if that makes sense. Had a good laugh at myself. Think I'll lay some sod tomorrow. Green side up right?