One of the most effective lubricating and penetrating oils, that flows into the tiniest of crevices. This is the penetrating oil of choice for loosening frozen screws and bolts. This oil will also free up super-tight barrels.Kroil oil also effectively lifts away lead and copper jacket fouling, and works great for getting underneath and loosening built-up carbon, copper and lead fouling in shotgun, rifle and pistol barrels. An added plus is that Kroil also dissolves dried grease and oil, displaces water, without harming metal.
Also know as The Oil That Creeps!!