Instruction: Analyze a question and its supporting document. Predicting answerability based on the information provided in the document. Output yes if the document contains relevant information to answer the question, otherwise output no.

Input:
Question: I know the outer case is plastic. But is the index that actually holds the bits made of metal?
Document: It's great to finally learn about these. I'm not certain how the plastic Index box with hold up,(my other cases are metal) but we'll see if it's still operating in a few decades
DEWALT DW1269 29-Piece Cobalt Pilot-Point Metal Drill Bit Index Set. These bits have done an outstanding job for me. I highly recommend them.
If you are like me and drill all kinds of things being the do it yourselfer, then you know that a Cobalt set will be in order. This set has the whole range and works as good as expected. The rugged case can take a drop or two, and the price was very competitive. I have not experienced resharpening and will look forward to someone educating me on that process.
I replaced my old cordless drill with the Milwaukee brushless hammer drill. A top drawer tool deserves a top drawer drill bit set. I have owned several index sets over the years and finally made the wise choice of Cobalt this time. I have had quite a few projects around the house to test these bits. There is SUCH a difference in Cobalt. These bits bite true and cut fast. You will be happy you spent a little more for a whole lot more quality.
cobalt bits are hardess metal that a drill bit is made out of. It doesnt get any better than this.
Supposedly, these bits slice thru stainless steel like the proverbial hot knife through butter. Well, that's not my experience, in the slightest. In fact, they UNDER-performed basic bits I get at Home Depot. Sad but true. Using decent Ryobi cordless drills, I first tried them on some serious metal: barely made a dent. Worked my way down to, a thin sheet of tin. Eventually, I got them to punch their way thru. Needless to say, an incredible disappointment. AVOID.
DEWALT DW1269 29 Piece Cobalt Pilot Point Metal Drill Bit Index SetI WAS IN THE PROCESS OF SEARCHING FOR THE 1969 PILOT POINT WHEN I CAME ACROSS THIS SET OF JEWELS..IT WAS A NO-BRAINER THAT I SELECTED THE COBALT,ESPECIALLY SINCE THE COST WAS ONLY $69.OO!!
Product delivered quickly and DeWalt Cobalt drill bits  work great. The case make it easy to store and find bits. Now if I can just get the worker to put them back when they are done with them I will be able to find them when I need them.
You can burn up a bit quickly if it's used for the wrong purpose. Steel bits for boring through wood or plastic are of a different nature and aren't designed for drilling through steel. I tried every bit I own to drill through a steel bracket, and they would only go so far. These cobalt composition bits ate through the project like it was nothing.
Well hello Dewalt bits.I love these bits. This is the standard 1/64th step set to 1/2 inch. The smaller bits have smooth shafts and standard taper grinding. The larger bits have the pilot point to help center the bit when starting the drill.The case is rugged. The clip to hold the whole thing shut is very stiff. In the end, it will never open up accidently. My set arrived covered in cutting oil.
Answer: yes