First of all, hello to all of you--New guy here from northern Indiana--this looks like a good forum with some knowledgable members and I have a question. I just recently stumbled on to the forum so bear with me while I get back to a subject recently covered. I just picked up my new Cz 550 FS today, been wanting one for awhile, 30-06, and they sent a small tool in a black cloth bag with it. Iv'e looked thru the info booklet that came with the gun and see no reference to this tool. Black steel, oval shape, and the one end tapers to a very small flat blade screwdriver, keyway looking cutout in the center. Is this possibly what is used to adjust the trigger? Can one of you enlighten me? Thanks, John H