Whenever I've needed to make adjustments to sights, etc., I've either borrowed tools from the range (after asking what tools I needed) or took the gun to a gunsmith. I think I'd like to invest in a basic gunsmithing tool kit. What should be in it? I'm thinking a set of hollow-ground screwdrivers, brass/nylon hammer, perhaps some punches, etc. Would like to have your input. Thanks.