Review on YaeTek Wedges Feather Concrete Splitter by Glenn Kumar

They do exactly what you expect them to, break big rocks, although they may not be exactly what you expect them to be. My wife hates the stones in front of our house. They're too big for me to move alone, so it's best to break them down into smaller bricks. I got a puncher and used them. Advice for beginners: pay attention to your stone, try to see or understand how it can break. I drilled the holes and it cracked the other way, which is fine with me, but maybe I had to drill fewer holes.