Qiimaha guud ee mashinka CNC milling ka badan qiimaha bilowga ah, waana ku qorshaya sara khaaska loo eedeeyo dhammaan sanooyinka mashinku shaqaynayo. Tafaharka qiimaha guud waxaa ku jira sababaha badan oo kala duwan oo ku saabsan qiimaha kale ee mashin kasta. Qiimaha hantida waa mid ka mid ah, laakiin waxaa jira qiimaha kale oo weyn si loo dhiso mashinka si sax ah, sida horumarinta dhisan, xidhidda bidix, iyo galiyanka nidaamka coolant. Qiimaha ustaaraha iyo hababka socodka waxaa leh qayb muhiim ah, maxaa yeelay aagga ustaaraha buuxda, holders sax ah, iyo nidaamka fixturing ayaa loo baahan yahay in lagu dharraajo awoodda mashinka. Qiimaha shaqada waxaa ku jira helitaanka nidaamka nolosha, taasoo kala duwan yahay midhaha spindle iyo duty cycle, iyo ustaaraha iyo coolants oo ah qiimaha la isticmaalayo mar mar. Isticmaalka waxaa lagama filna qiimaha, taasoo leh adeegga maalinle, beddelida qaabka la wear yahay sida bearings iyo seals, iyo iskudhafka suurtagal ee subsystems complex sida CNC control ama drive amplifiers. Qiimaha ilmasho operator iyo software programming waa in lagu daro qiimaha guud, maxaa yeelay sababahaas ay tahay kuwo ku saabsan shaqada iyo awoodda alaabta. Iyadoo markhaatiyaasha tijaabo qorsheynaya mashinno kala duwan, waa in la heley ardaynta ganacsiga, hoos u dhinteeda alaabta la soo bixiyey sababoogga saxiimadda, iyo fududnimada in lagu shaqeeyo alaabta kala duwan. Tafaharka qiimaha waa inay ugu socda muddada mashinka la filayo inay shaqaysato, qiimaha dib u leh, iyo macalinta nidaamka automation ee soo socda. Habkan buuxda ayaa markhaatiyaasha ku caawin inay sameyso furshado saxsan oo ku qorshaya ganacsiga hadda iyo maqalka dhererka.
Kooxdaaga shuusha waxbarashada waa in la mid haystay in la caawinayo.