The 11" Electric Grinder is ideal for the removal of thinset, mastics and heavy coatings. It is also ideal for resurfacing of damaged areas, tapering of high concrete 1/4" or less, grinding concrete and smoothing rough surfaces such as trowel marks.
This grinder requires a set of three trapezoid bits, depending on application:
The PCD set is for aggressive removal of coatings on concrete - resin, paint, urethane, mastics. They will leave a rough surface texture. $63.96 / day.
The Blue double dot set is for light grinding & smoothing, and is to be used after the PCD to take out the rough texture. $47.97 / day.