8-Pieces SDS-Plus Rotary Hammer Drill Bit Set, Carbide Tip 4-Cutter for Brick,Stone & Concrete

These worked really well for drilling concrete base anchors. I’d recommend.

Bought these along with a new hammer drill, Punched 50 holes in 8" thick, 3000 psi concrete, cured for two months, and never dulled it. I've had brand name drills dull after just a few, so I'm impressed for the money.

11in deep hole in about 1 minuet. I say they work just fine.

I'm impressed! This pair of 3/4x12" Hammer Drill Bits arrived quickly and are much better quality than the bits available at the Orange or Blue box stores, and at a fraction of their price. I appreciate the engineering of these Cross-X carbide tips with their double-helix shaft ... just so obviously better than the single Tee points and single helix you see on other bits ... even (so-called) "premium" bits. I only need to drill a single hole in my house slab, but I ordered the pair because buying these costs less than renting a hammetr drill and a single bit for four hours.

Lasted very well for production work in concrete! Great value!

Pretty dang good bit. I was impressed for the price. I recommend.

Works as described

Worked very well, Quality was good, made quick work of 3/4" holes.

Buena calidad, funciona excelente

Utilisé pour percer de la roche sans aucun problème une vingtaine de trous effectuer

Did 12 short but 3/4" holes and was still good- no signs of wear

Muy buenas brocas, me sirvieron para taladrar unas rocas enormes que sobresalían de la pared de un estacionamiento. Calculo que hice más de 300 barrenos. Ya perdieron un poco de filo pero aún sirven.

did the job