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'm a machining student...i need drill bits & reamers....can it drill & tap CRS or aluminum as thick as 1"in?
Document: i have only used it on aluminum and plastic so far, but so far my experience has been good.wordupdate..: would strongly suggest getting a set of drill bits to go with this set, if your going to drill into anything more then 1/4 inch thick... it is just wise practice to have the whole hole drilled out first.
I ordered a second set today. One for the shop, one for the truck! LOL I have used the 1/4-20 bit to tap 19" Electronics Rack. The rail is 1/4" thick aluminum alloy. The material is not steel but is just as heavy as steel. Some type of hardened Aluminum Alloy, because it doesn't rust and I know it isn't stainless.
This is a set of drill/tap for common SAE machine screws. They have a 1/4&#34; hex base for a speed-lock adapter in your drill - Or you could use them directly in the chuck.I use this to tap brass and aluminum. It works great! Although it is a drill and tap bit in one, I strongly reccomend drilling a pilot hole if you are working with anything other than sheet metal.
I am guessing 1/16" smaller? I used a 18V Cordless Ryobe Impact Wrench. (yes all you faithful dewalt lovers out there can bash the Ryobe all you want, but I have had mine for 6 years and it hasn't failed me yet. Oh and yes I use it every day for work)  I took my time and it cut right through the thick material. I have used the same bit to drill/tap several holes (excess of 10) with success.
I want to start by saying I pre drilled very hole with a separate bit to minimize the risk of breaking one of these. I used aluminum since it was strong enough for my need but soft to drill into. I was able to thread some aluminum stock and mount things into toyota bed rails with these. Anyone that has looked at factory parts for this knows what a bargain that is. I made brackets to hold generic bike mounts(purchased on Amazon) and it worked great.
I had previously purchased a set of taps from Harbor Freight which lasted for about 10 taps into 3/16&#34; aluminum and then were useless.Saw this set with the built-in drill. First job I had to do was 10-32 into 1/4&#34; aluminum.
Greenlee is taking a step forward in making an all in one tool, The DTAPKIT 6-32 To 1/4-20 Drill, Tape Set; I will give them some credit for trying. But the bits are made of cheap metal and will snap on you in the field, Ether when first used or later on, it will snap, it did it to me. I am certified Electrician for I.B.E.W Local 11 Building a Better Los Angeles.
I had to put new screw threads on some expensive exterior lights. This product worked great. Granted the fixtures were brass/aluminum so I don't know how these would stand up to steel. But they worked great for these soft metals. I love the fact that they are a drill and tap in one. Cheers, J
I purchased this product from Amazon because their price was half of all retail stores. I think everyone wants to save money. This item is very useful because it is a drill/tap combo and you only need one tool. This keeps the old tool bag from becoming overloaded. This is a tool that every electrician needs in theeir possession.
I didn't even know the lingo, such as tapping, deburring countersinking, etc. Now I know. :) I don't have a current project, but I was anxious to try this, so I used a large PVC coupling, nice and thick. Clamped it down properly and did my drilling with the 1/4 bit. The hole came out perfect with all the threads. I had some sort of camera adapter plate lying around, it has a 1/4 machine screw.
Answer: yes