DAMO4 inch Diamond Turbo Grinding Cup Wheel Coarse Grit for Grinder with 5/8"-11 Arbor for Concrete Granite Marble Grinding

I needed a diamond grinding wheel that would attach to a small bosch angle grinder to shape and form some limestone slabs for a water feature I am building in my back yard. At first I balked a little at the cost of this tool but now that I have used it I realize it is worth every penny. It does exactly what I need it to. Fast material removal, good surface finish and its stood up to a LOT of use and still going strong and has plenty of grinding material left. I couldn't be more pleased.

Used this product to grind a granite cutout to accommodate a larger cooktop. It wasn't pretty but worked well. This was my 1st time using any sort of grinder so I blame the operator for the inexact edge. The edge is covered completely by the overhang of the new cooktop & can't tell it's not an exact square edge. Had to make the cutout about 1/4" deeper & since none of the granite installers in my area were willing to help me out, I accomplished the task with the help of this grinding cup wheel.

I had already gone through several cheaper grinding wheels that feel apart before buying this one. Unlike the others, it lasted through many hours of cement grinding. Worth every penny.

This worked great! I made a cabinet and had to install granite countertop with two walls. I used this to conform the countertop to the imperfections in the wall.

The price was good, but the cup bounces on the surface. None of my other cups and disks do that. The price might be pretty good, but the cup seems a little warped or off center. The trouble is I bought 2 because the price seemed good, but now I have spent money on a product I can't return and don't really care for.

Had to grind out and expand the sink opening on a granite counter top and this grinding cup was incredible. Took about 1/4" off all sides of a 22"X25" opening and cleaned up the corners for a new over mount sink. It did the job in under an hour.

POWERFUL! I needed to round up a rather large rock and this bad boy did the job wonderfully.

If you're grinding a concrete surface for stain or epoxy prep, SAVE yourself some money and buy a Dewalt double row diamond grinding cup. This one was double the cost, had annoying vibration and left tons of "kiss" marks no matter how you held it.. The Dewalt was smooth grinding, and lasted much longer!