HCK005 5-Piece Assorted Set SDS-Plus Bulldog Rotary Hammer Bits Ideal for Applications in Masonry, Brick, Block, Concrete

Excellent quality. It makes holes in concrete very easily.

I have several Bosch products including a set of similar bits to these. One of my bits broke and I began to search for a replacement bit and came across this set. This entire set was less than the single bit I was replacing, what a great value!

Home Depot and Lowes couldn't touch this price

I have a home workshop/studio in a basement with thick concrete walls and these Bosch masonry bits in several common sizes work well. They drill into concrete effectively (better than most), quietly and lost longer than most. Recommended for that application.

There's really not too much to say about Bosch bits that hasn't been mentioned already. They perform as they should, and last a good, long time. I purchased this set with my Bosch Bulldog rotary hammer, and have used them a number of times drilling into old, poured concrete floor slabs, and into newer poured concrete walls. In all cases, they have quickly and efficiently performed their task, then returned to looking like new with a quick wipe-down with a rag, and a spray of light oil to protect them during storage. These bits are quite short, the length of the SDS spline can be slightly deceptive if you are not familiar with roto-hammer bits, but they are more than sufficient for setting wall anchors for shelving and soforth where stiffness will benefit you more than reach. I would suggest that anyone buying a rotohammer should pick up this bit set along with it, for the price it will give you a lot of versatility and will last a long time. It's not the be-all end-all of bit sets, but for the price it is very good. Even comes in a nice, slide-top case to keep all the bits sorted out from the rest of the junk in the bottom of the tool box. When I finally manage to wear mine out (haven't even made a significant start on that yet) I'll definitely be buying another set, just to keep in the case with the tool so I've always got a bit on hand.

Used a lot with my Bosch rotohammer. The bits drill quickly and have held up to hard use.

Easy to use and priced well.

These SDS bits combined with the Bosch Bulldog rotary hammer drill makes light work of drilling into concrete to set anchors. And these bits go through cast pavers and cinder block like a hot knife in butter!

Used one on a hammer drill to break concrete and it worked quite well. Not sure how long they will last but so far so good.

I used the 1/2 " one to drill ~100 holes in concrete, the drill bit stills works like new. You can't go wrong with these bits.

Bought these with thr Bosch bulldog and they plough through masonry. They're cheaper bits out there so that will do the job but these are worth the extra

one of the five bits arrived not 100% straight, which seems to be a common problem. For the price I got it for, I decided to keep rather than return, but quality control prevents me from giving this 5 stars despite its great performance

Lasted for 2-3 years after heavy use. Works like a charm to drill concrete and rebar