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: can you measure hex drill bits.
Document: The guide works but isn't particularly easy to use. The drill bit contacts the sides of the holes causing the guide to move a little. Tried it with one of the smallest bits and the bit broke because I wasn't exactly straight into the hole. If I could do that, I wouldn't need the guide. I'll probably try a guide that holds the drill, not the bit.
What I did in my first test project was punch a hole in the (wood) surface, then felt around for it with the drill head, placed the guide appropriately, then drilled.Note that one loses an inch or so of potential drill depth, and smaller drill bits tend to be rather short. Also, some have noted the drill guide coming with a small case. Mine came only in a blister pack and without a case.
This drilling guide is just what I needed to drill straight holes in standard sizes, particularly in areas where a larger guide would not fit. Just be aware that the guide is about 1" thick, so short bits will not penetrate too far beyond the guide. You'll have to buy longer bits, or at least start the hole with the drill guide, then use the straight hole you just drilled to guide you when finishing the hole without the guide.
Interesting product. Works well, helpful, but doesn't guarantee straight holes when using a small bit because they can curve, whereas thick ones can't...so it works better for thicker bits. So for small bits you wish it were a little longer, except that the longer it is of course the shorter is the usable portion of your drill bit, and thin bits are typically already make short, so I guess this is pretty optimal.
This drill guide is an excellent alternative for when you can't use a drill press. The guide holds the drill bit perfectly straight-- the holes are just the right size so that the drill bits are held snugly with absolutely no variance or wobbling. Just make sure to use two clamps to hold the drill guide securely to the material being drilled-- I found that using one clamp wasn't enough to keep the drill guide from traveling once the drill got going.
I not only use it as a drill guide. I use it to measure nails, bolts, pins, etc of unknown size. Comes in very handy and works like a charm. Very nicely made. Would buy the same all over again for me or to give to a handyman as a gift.
This works great if you don't have a drill press, or the hole location is where using a drill press is not possible.
Works well when a drill press is not practical. Tight enough to control the bit, but not so tight that it binds,
Very simple idea, but quite handy. Can easily line up and drill such things as larger, round dowels for example.
Too much money for what they do. Unless you hold them very tight your drill doesn't drill straight,  I'd buy something else.
Answer: yes