Idan babu injin ƙira,masu kera injinaamfani da hanyoyin sarrafawa na gargajiya ba kawai yana shafar saurin samar da sassa ba, har ma yana rage ingancin ƙimar sassa. Amma mun san cewa inganci da inganci shine tushen rayuwar ƙungiyoyi, musamman a cikin ƙananan masana'antu da matsakaitan masana'antu don haɓaka ƙimar umarni, ƙimar samarwa kuma dole ne ta kai babban matsayi. Al'umma ta yanzu kuma madaidaiciyar mashin ce kawai zata iya kaiwa ga wannan madaidaiciyar, madaidaicin kayan aikin injin yana dogara da fasahar kere-kere mai inganci, ingantaccen aiki har ma da ingantattun kayan aikin sarrafa kansa don kammalawa, don haka kayan aikin suna sanye take da na farko.

       Daidaici sassa machining tsarishine don tantance tsarin aiwatar da sassan da aiwatar da aikin. A ƙarƙashin takamaiman yanayin samarwa, mafi dacewa tsari da hanyoyin aiki daidai da tsarin da aka rubuta cikin takaddun aiwatarwa, bayan amincewa don jagorantar samar da rukunin yanar gizon. Daidaitaccen tsarin sarrafa sassan sassa na kwararar hanya gabaɗaya ya ƙunshi hanyar aiwatar da sassan, takamaiman abun ciki na kowane tsari da kayan aikin da aka yi amfani da su da kayan aikin, abubuwan duba sassan da hanyoyin dubawa, lokacin ƙima da yanke sashi da sauran abun ciki.

Abubuwan fa'idojin kayan ƙera madaidaiciya suna da yawa, yana iya haɓaka samarwa da inganci yadda yakamata, yana da fa'idodin abinci mai mahimmanci, rage farashin kamfani. Daidaitaccen ƙira da fasahar sarrafawa na iya haɓaka yanayin aiki, rage lokacin aiki, rage ƙarfin aiki, haɓaka aikin samar da wayewa, haɗe tare da kera madaidaiciya na iya rage ƙarin ma'aikata da hayar filin, gajarta tsarin samarwa da rage farashi, adana makamashi, don haka amfani da fasahar kera madaidaici yana da fa'idodi da yawa.

Daidaitaccen sassa na injiniya ta amfani da ganowa ta atomatik, na'urorin saka idanu, waɗanda ke dacewa don haɓaka yawan samfur da kwanciyar hankali, sassauƙa mai sarrafa kansa na iya daidaitawa da sauri ga canje -canje a cikin samfurin. Don haka, tasirin fasahar kera madaidaiciya don samar da masana'antu a zahiri yana da girma sosai, amma saka hannun jari na farko a cikidaidaici inji sassa aikifasaha za ta kasance babba. Don haka, mai amfani yana buƙatar yin taka tsantsan lokacin zaɓar mai sarrafawa mai kyau na iya kawo ƙarin inganci, ingancin sarrafa samfur, kuma yana iya rage farashin gaba ɗaya.