5pcs 7/32" X 6"-4" Cross-Type Double Thread Carbide Drill Bits for Concrete, Brick, Stone, Cement Walls

The drill bits are great. Used them drilling into natural stone. They cut very well.

Nice quality and sturdy used to attach speed bump to asphalt Worked great and was a good value

I had about 20 holes I had to drill in concrete. Bought these hoping that I wouldn't need to buy more bits to get the job done. Did it with just one bit, and it was still drilling well on the final hole. One thing....these are SDS bits. I didn't know the difference. I have 2 hammer drills but neither are SDS. These bits don't work well in conventional drill chucks.

Very, please with this. Help me to complete the job and the material. He’s very good quality. I recommend it.

Super tough concrete bits. Not as fast drilling as some I have but last longer.

Great value, works perfect!

Awful! This bit is cheap metal not hardened steel, could not cut through concrete. Spend your money on a quality product that is effective.

Incredible value for the money. I needed to drill a 3/8" hole thru 10" cement block to run a water line. These bits are by far the best concrete bits I have ever used. They have a star shaped carbide bit that cuts quickly and accurately. These bits also have a type of shaped end that fit into the drill chuck no problem. I used a standard 1/2" hammer drill and these bits really cut fast. It did not matter if it was thru mortar or block these bits cut thru with ease. The price is for 3, don't be fooled into thinking they have to be junk because the price is so reasonable.