Instruction: Given a question and its related document, determine if the question is answerable by analyzing the information in the document. Output yes if the document addresses the question, or no otherwise.

Input:
Question: Does this fit in a Makita HR 2811 FX,  1 1/8  Rotary Hammer?
Document: So far I've only used the longer 1/2&#34; bit, but it worked great chewing probably about 100 holes through very old concrete. It's still sharp and plowed through large (2&#34;+ diameter aggregate). I was able to drill break lines across the concrete and bust it up with a bull nose chisel and a 4lb hammer. I used the bit with an 1&#34; 8amp rotary hammer made by the yellow guys.
I purchased these to fit an existing tool purchased for an earlier project. Having these now will keep me from buying a different hammer drill for other projects too.
Hi Everyone,I bought these SDS+ Bits for my Reconditioned Bosch Bulldog Rotary Hammer (reviewed by me as well) and I absolutely love it!!
These drill really work great drilling holes in concrete when used with the Bosch Rotary Hammer. This really beats drilling holes in concrete with a drill.
These bits seem to be a good set. I just bought a Bosch rotary hammer and have not used it very much just yet. Compared to other bits I've used these are much better.
It's a good drill bit set to start  with.It's drill very well with a Rotary hammer.Very well made.Good quality.The only thing I found , if  the will be  a bit longer .
If you are just buying a SDS Plus bit type rotary hammer drill this is an excellent bit set to get started with. The case is metal so it will last forever and when a bit wears out you can just get a new bit for the case.
BOSCH HCK001 (SDS-PLUS) 7 piece rotary hammer assorted masonry drill bits. Great assortment of bits in a handy case. The bits work great showing little signs of wear. The kit provides just the right size bit for almost any concrete project.
These rotary hammer bits by Bosch are a good product. Keep in mind the SDS designation as they are for a specific application and for using in the newer line of tools by Bosch. Bosch name can be trusted for quality but in many instances is overpriced. Some sizes of these bits I use more frequently than others, so would be better off purchasing multiples of those then as a set.
I was really fed up with spending money on Masonry Drill bits and they won&#8217;t do the job. I am very much satisfied Bocsh SDS-plus Rotary Hammer Drill Bit Set . With right hammer Drill Machine these bits will drill the hole in the concrete like knife in the butter.Certainly I would recommend this product.
Answer: yes