Review on Unleash Brilliance: 💎 FACHLICH Diamond Porcelain Existing Enlarging by Seth Damain

Needed to widen an existing tile hole in a countertop. This attachment is designed for a quick, even cut through tile, underlay and plywood .Cuts very quickly .The plywood has no visible wood fiber loading of the abrasive.It replaces your cutting/grinding wheel on your sander, simply remove the wheel, mandrel adapters and screw the insert directly onto the 5/8" threaded stud of the grinder. It has flats for easy installation. My wife borrowed it to do the same job on a stainless steel sink. When I got it back I noticed there was a small groove on the surface of the bit. Was going to tell her to move it up and down but hey it ain't screwed up.