ahh shoot I should have clicked the link. So the unit I rented from home depot is called the turbocut hexpin.
http://www.nationalequipment.com/grinders/Hexplates_continued.html
That sucker is the one I feel is not that great and clogs easily.
andy
My floor was bare concrete with no coating. I believe if there was this system would not work. It would clog up too fast. If you do have a coating your only option is sand blast or spending the $ on a large diamond cutter OR using the smaller one and spending a lot of time on it. On my floor...
I just rented this 2 days ago. Paid about $200 total including the rental for the hex-pin, the grinding bits for this tool, the sander this tool attaches to, and a hand grinder for those tough to reach spots. I also had to pay $60 for the diamind cutter taht goes with the hand grinder.
to...