Instruction: Given a question and the related document, predict if the question is answerable based on the information provided in the document. Output only yes or no.

Input:
Question: I have some pre-installed shelving (only top 1/3 has holes). Do I need to clamp down the jig? Can just push the jig into the corner and drill?
Document: This is a well built and quality jig. It includes most of what you need to drill accurate and consistent shelf holes, the only exception being a face clamp, which would have increased the price. The jig includes 3 heavy duty plastic jig pieces with steel inserts for the drill. I used it for a bookcase with no noticeable wear. It also includes a bag of hardware (drill stop, allen wrench, locator pin, screws for the extender, and some sample shelf pins).
I have used this install shelves in exsisting cabinets. Just cut a block to sit on bottom shelve and place jig on top and drill your holes. As many as you want in each corner and they all come out even for you shelves to sit on.
This jig is excellent and has finally made it where I don't have to make new shelving jigs frequently. I used to take a piece of scrap, measure, mark, and then drill holes down the board, then clamp and drill through the jig every time I did shelf pins. The holes would get bored out and would not stay perfect, thus I would have to make a new jig.
These made a bookshelf project dead easy, precise, and fun. Make sure that you settle the jig down against the alignment pin (pull it down so that the pin is snug and not rattling in the previous hole) so you don't get a small 1/16 in error that adds up to shelf rattle at the bottom of your job. I use a face clamp with these, too, to keep the jig snug. I especially like the built-in storage for the associated drill bit and alignment pin.
The holes in the plastic jig itself are all 1/4 inch. The 5mm drill bit has a 1/4 inch shaft and then steps down to 5mm. You don't need two jigs - just one jig and the two Kreg drill bits. Note that a normal 5mm drill bit with a 5mm shaft will not work properly with this jig since the holes are all 1/4 inch. You need the Kreg 5mm bit for this to work properly.
These jigs are very simple to use. I bought two and connected them together. comes with everything you need except a clamp if you choose to use one. Very good quality for plastic. The drill holes are metal though. I would highly recommend
I bought this to use on a massive book case I built (10 feet wide by eight feet tall with adjustable shelves) and it worked like a dream. You just need to use a firm hand (or a clamp) when drilling the first hole, then the pin holds the unit in place as you drill additional holes, moving down the piece.
Like every Kreg product we own, this one is simple to use and sturdy. If you are someone who builds furniture this is the perfect tool for making hole for adjustable shelving. It is even handy if you want to add additional holes to existing shelves.The included template has holes marked off at a standard distance so all you need to do is line them up with the holes you already made and drill into the other holes on the template. It even comes with a set of starter pins.
Have to take it off to access the storage for the bits and pin, but a minor inconvenience really.UPDATE: Downgraded from 5 to 3 stars due to a quality issue: one of the metal sleeves pulled out of the plastic when the drill bit got clogged with wood chips. This is a first for me. Now I need to see how long the warranty is....
I have the jig for joining boards together and it works great. I figured this would be fine also. It does the job easily and quickly. Add shelves to existing furniture or build new. It is well thought out. You need to buy a good clamp to make it work.
Answer: yes