I would like to buy my first set of tools dedicated to firearms (no longer use the mechanics tool sets bought over the years for delicate tasks). First off, I really need to get a basic set of screw drivers and hex heads. What is a good basic set? My budget is $100, but that could change based upon your recommendations. I just happened to be at Cabela's the other day and looked at a set made by Wheeler's. I checked the reviews on my phone before a purchase, and they were quite critical, so I didn't buy the set. My older rifles in particular have very odd-sized screws, and I don't want to damage them with tools designed for automobile engines. Thanks.