Review on Kwokker Tungsten Triangle Professional Concrete Product by Eric Avina

I've used them a few times to drill cement board for wall anchors or to drill through drywall before drilling into a stud with a twist drill. The parts are of course dirty, but there are no signs of wear. And they break through the mineral material of the cladding and walls. no need for sharpening. hold my twist beats A home champion will appreciate them no less than a pro. Recommended for anyone who has a drill. I am grateful to the people who invented and made these beats. (Disclaimer or caveat as claimed by manufacturer; I have not tried them on glass or other hard stone, I suspect diamond would be better suited anyway)