Toolocity SCB0138D Diamond Concrete Monster Review

Good quality bits. We bought 6 of them. Various sizes and they work well. Average. We have used them on granite, travertine and porcelain stoneware , all hard materials I imagine they would wear less on regular ceramic tile.

After 10-15 uses the drill stopped working. Loses its structure and cannot work. Other drill bits I buy last around 55-70 depending on the type of material they are used on. I do not recommend buying. Will not buy again and will be returning unused drill bits.

In the current condition. I've only used it a few times recently, but I've been working professionally with slabs of granite for 8 years and have used many, many crowns, old and new. This one works just as well as anything I've used. Need a variable speed grinder (think 13+ amps) to work properly with this type of bit. This is really a professional tool. If you have never drilled through granite, consider hiring a professional. The damage you can do to a hard stone surface by bouncing around a…