Instruction: Output yes if the supporting document can answer the given question. Otherwise, output no.

Input:
Question: what is the length of the burr?
Document: Very high quality. Much better than a name brand diamond burr I purchased at the hardware store (one of which cost 3x what this entire set cost).
They barely engraved glass or stone, and wore down after only a few minutes of use. If you're planning on using these on softer materials, they might get the job done. However, A quality diamond burr tip should have no problem with glass or stone. I will NOT be recommending these to anyone. Unbelievably cheaply made.
LOVE LOVE LOVE! I use this for my dremel and they work so well! Apply a little burr life and they last a very long time! I use these mostly for copper and silver. It does leave a texture but they take out those big pieces and make it the right shape and size. Then you can just sand and polish and it will look great! For the price too!! !
I drill old glass and have been doing this for many year's and some drill will not drill glassSome drill I can drill about 50/100 pirces befor it quits.The Diamond Burr set DT220R is doing a great job still using same drill bit. over 100 pices doneI only use 1 / to 4 drills out of a set.
worn out easily... i tried this product for glass etching. It depends on your subject on which you are planning to work on. No suitable for wood.
used 6 bits to grind holes in tile, i make them small then use the grinders to get the holes the best size, glad i ordered these, also smooth down many tile with them, they last pretty long too, well worth the money..
this product is only oke. and not much more that that, hard to use and no instructions whatsoever for the novice, if you are already an expert than im sure you will most likely have better luck.
not the best diamond bits obviously but they do work. Biggest downside is they dirty easily especially on wood and some of the diamond dust has come off a bit. Short version here is that this is a decent set for practice but will not last a really long time.
nice set of diamond tip buring toos, they work well in my dremmel and are great for detail work on glass, cermaic, wood, metal, just about any thing, at a great price
making jewelry is my past time and these drills are perfect for drilling through stones. They last a long time. Great price
Answer: yes