Its purpose is for painting supplies, hand caulking guns. Accepts 10 oz. cartridges. It gives a 7:1 mechanical advantage. COX is the recognized world leader in quality caulk guns and epoxy applicators. We offer a wide range of manual, pneumatic and battery powered models, all of which are stocked in Haslett, Michigan to ship to any point in Canada or the U.S. All products in the COX line are manufactured in-house at facilities in Haslett, Michigan and Newbury, England. Manufacturing processes adhere to rigid quality management, offering reliability and durability.