"Concrete garage floors are being coated with epoxies at a rate of $4 per square foot. This is an awesome DIY project if the homeowner can rent a grinder that is easy to operate and will not ...

But don't get carried away imagining your angle grinder outfitted with a diamond tip taking on this intricate job. The real ...

Contractors can remove a thick residue from a concrete surface with the right grinder and diamond combination. Jobsite size. The size of the floor will help determine what size of grinder to use.