I need a decent set of tools I can use on my guns. Mainly screwdrivers. Has anyone bought a kit that pleased them? It would need to be compatible with the three major food groups of guns-pistols(autos and revolvers) and rifles(includes shotguns) any advice would be greatly appreciated. I needed to adjust the sights on one of my pistols a while back and did not have the proper tool for the job. Thanks.