Central Machine & Tool provides production milling, precision machining and sand casting services. It is affiliated with PT Coupling Company, which offers casting services for ferrous and nonferrous metal parts and injection molding services for resins and thermoplastics. The company operates Speciality Plastics, ProGrip Coupling, IncPerfection Tip and Seeker Rod Company. PT Coupling Company provides clamping tools, industrial hose couplings and sport fishing rods. It also offers banding and strapping services, as well as provides installation services for locks, groove caps and plugs, hose fittings and trays. The company is a manufacturer of hose clamps, brass fittings and couplers.