osg4dSuperior point strength with low cutting force is achieved to accommodate a wide range of carbide drilling application. This drill series is coated with OSG’s EgiAs coating, which is constructedOSG4D PATEN, Jayapura, Indonesia. Selamat Datang di OSG4D Kami Siap Melayani Anda 24 Jam. Toto Permainan