10mm/0.4inch Diameter Carbide Tipped Masonry Impact Concrete Drill Bit SDS-Plus Rotary Hammer Bit 150mm/5.9inch Long

Using this for drilling holes in cinderblock/concrete to hang some things. This bit, along with a hammer drill, has made quick work of drilling the holes. Definitely would recommend.

Great for drilling in concrete.

Drilling in concrete is very difficult. These bits held up fairly well, but I had to drill 4" down in 40+ year old concrete. I bought 4 bits to drill 8 holes and I used 3 of them. For the price, I considered the bits to be a good value. All concrete bits dull and these are no exception. But they cost less than the ones at Lowes and Home Depot.

I bought this bit thinking it would work in my regular drill but it but it did not. The bit had grooves to fit a hammer drill and doesn’t fit properly in any other drill. A neighbor loaned me a hammer drill and it worked perfectly in that

Very affordable. Rapid delivery

I ordered 8 bits to do a job requiring 16 holes over 2 inches deep. At two holes per bit, I am satisfied. Masonry bits drilled into concrete require a lot of patience, and these bits are good quality

Used to install a handrail that had metric bolts and made install a breeze.

Shipped quickly. Worked fine.