Carl Kammerling International (also known as CKI) is a manufacturer of hand tools, tool storage, power tool accessories, and security products suitable for professional, industrial, and consumer use. It offers pliers, cutters, screwdrivers, wearable, cutlery, fabric storage, combination padlocks, etc. The company operates C.K Tools, C.K Magma, C.K Classic, Kasp, and Avit brands.