Diamondsure 3/4" Drill Bit

Tried to drill a quartz counter top. Would not drill it. After several minutes, I checked the blade and found that most diamonds were gone. Would not buy it again.

A great product and great support from the manufacturer when I had a question.

Add a little water and it cuts right through Italian porcelain. It looks like it will last long enough to do 2 full bath renovations - at least.

Did great!

glass, porcelain, slate worked great

Awesome. Highly recommended

great