1x12 SDS-Plus Rotary Hammer Drill Bit, Carbide Tip 4-Cutter for Brick,Stone & Concrete, Packed of 2pcs.

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.

Works well and reasonably priced.

4 cutter head worked very well on old brick. Price was good and product seems well made.

The product and price are good, but the shipping was a bit slow.

Durability and functionality is the best way to describe this bit

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.

Works great good bits

Good quality