absolutely!! great all around tool. get yourself a drill bit set and screwdriver bits and you should be set for most household chores and hobbies.
No. They do not have a 1/4 inch hex shank. It may look like some do, but that is just a grind they put on the bits so they do not slip in the chuck as easily.
Yes this bit set will fit your new drill with a 1/2" drive.
no you need buy all merchand
yes
yes
The drilling depth for the 5/32" bit is 2".
In theory, yes. Practically however these drill bits are dull as q-tips! Buy another set and drill away!
I am am not certain, however I have attached the link for DeWalt products you can review same and see if it provides you with the information you are seeking.https://www.dewalt.com/en-us/legal/warranty/general-warranty-information
Not made for concrete.