CNC machining, eo hape e bitsoang precision machining, ke mokhoa oa ho seha kapa oa ho tlosa tšepe ka Computerized Numberical Control (CNC for short). E thusoa ke CNC ho fihlela ho nepahala ho phahameng le ho tsitsitseng ka litšenyehelo tse fokolang tsa basebetsi. Precision machining ke efe kapa efe ea mekhoa e fapaneng eo ho eona sengoathoana sa thepa e tala (hangata ke ho lahla likheo, likheo tse entsoeng ka boqhetseke kapa lisebelisoa tsa tšepe tsa sebopeho) se khaoloa ka sebopeho le boholo bo lakatsehang ka mokhoa o laoloang oa ho tlosa thepa. Le ha likarolo tsa machining tsa tšepe ea alloy CNC ke likotoana tsa mosebetsi tse entsoeng ka tšepe ea alloy (ka mefuta ea li-castings, forgings kapa meaho ea tšepe ea alloy) ke mechini ea CNC.