A na-ejikwa ọla na-efe efe na-egweri na-egweri ihe eji eme ya, cylindrical egwe aka carbide cars, ngwaọrụ ịkpụ, ebu na maka egweri ya. Anyị nwere ahụmịhe dị ukwuu na igwe osisi eji osisi mee ihe maka egweri ihe okirikiri nke okirikiri, diski, bandsaw, wdg.
