Cusub-tengiddada CNC waa jarida uga leh helitaan iyo nooca ka saaran ee abuurista, waxa uu isticmaalaa kompiyuter-icdaaweysan, qalabka ku dhakansan kasta oo leh in la sameeyo qaybta gaaban ama joogtada ah ee ay ku jiraan qaybta gaaban. Awooddu muddo-dhaqameeduna waa inay abuuraan mudnaan hal af, kooriin yar ama shirkadaha badan oo leh isku-dhufasho iyo heer sare leh oo heerarka. Jarriyadda bilaabma shaacadda 3D (CAD), kan la beddelayo amaraha tengidda (G-code) adigoo isticmaalaya warshad CAM. Kanu wuxuu caawinaysa in la xusuusto xariijinta mashinkii tengidda—si gaaban saddex (X, Y, Z) ama ka badan marka la leeyahay mashin 4-axis iyo 5-axis—waxaana leh helitaanka sarreef aad ah oo leh goobaha, furfurkooda, boggeedka, ribskooda, iyo dhulka muuqadda. Doorashada qalabka, mid ka mid ah end mills, face mills, iyo drills oo leh noocyada iyo coating-yada kala duwan, waa muhiim tahay si loo gaaro heerka ka saarka, tolerances, iyo dusha. Qorshooyinka kor saaraysa sida high-speed machining (HSM) waxaa loo isticmaalaa in lagula saaro heerka sare leh oo spindle iyo feed rates iyagoo isticmaalaya deep cuts yar, taasoo samaysaysa dusha leh faham weyn iyo in la xidho stress-ka tengidda qaybta. Si loo helo cusub-tengiddada saxda ah, jarriyadda labaad sida bead blasting, anodizing, ama painting waxaa laga saaraa adeegga. Mar dambe, cusub-tengiddada CNC waa meel tusmood ee abuurista aasaasiga ah, waxaana leh helitaanka in la abuuro shaacado cusub oo ku tiirsan qaybaha aeroospace iyo tibix, otomotar iyo electronics dadweynaha, sidoo kale helitaanka in la cusbooneysiyo dhow ama in la abuuro alaabta sax ah iyo awood leh.
Kooxdaaga shuusha waxbarashada waa in la mid haystay in la caawinayo.