APACALI 9 Piece SDS Plus Masonry Drill Bit Set 3/16" - 5/8" Carbide Tip Rotary Hammer Drill Bits with 3/8 inch SDS-Plus Shank for Brick, Masonry, Concrete, Rock, Ceramic Tile, Cement

The drill bits were priced right and did what I needed.

Did an excellent job on concrete, biggest thing to watch out for is keeping the bits cool when drilling through really dense concrete with water. Also the bits do slightly bend if you apply to much pressure (can't blame the bits though due to I easily put way to much force on tools.) Over all I'm really satisfied.

Listing says metric sizes equal inch sizes which is not true. The problem is when you have a 1/4 concrete anchor, a 6mm bit is too small and the 8mm is too big. It's either very hard to get the anchor in or it never gets tight and pulls out.

Have not used them yet but they do look a little cheaply made.

A good assirtment of hammer drill bits

These bits are good quality and effective for the concrete boring job I had put them to. Drilling the 10 holes in my foundation was quick and effective. My previous drilling I had done with a regular electric drill with carbide bits. I had struggled to drill holes with that conventional equipment along with a star drill to penetrate embedded stones. The Rotary Hammer Drill that I had bought for this present project, along with these bits makes such work quick and easy. Even if these bits lasted just to the end of the task it would be worth it. The bits that I used show minimal signs of wear and will last a long time.

They all fit in my drill case