Perfect for use with all firearms and calibers, anybody can be a gunsmith with Birchwood Casey?s Gun Plumber Folding Multi-Tool! Since 1948, serious shooters, hunters,avid collectors and professional gunsmiths have relied on Birchwood Casey for shooting and gun care products that have stood the test of time. From legendary Tru-Oil Gun Stock Finish and Perma Blue Liquid Gun Blue to revolutionary Shoot?N?C Targets, Birchwood Casey has pioneered innovative products with an unwavering dedication for quality..