Akwai nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan nau'ikan ƙarewa da kayan aikin niƙa fuska, kamar yankan tsakiya da waɗanda ba na tsakiya ba (ko niƙa na iya yanke yankewa); da rarrabuwa ta adadin sarewa; ta kusurwar helix; ta kayan aiki; kuma ta hanyar kayan shafa. Kowace nau'i na iya ƙara raba ta ta takamaiman aikace-aikace da lissafi na musamman.
Babban mashahurin kusurwar helix, musamman don yanke kayan ƙarfe na gabaɗaya, shine 30 °. Don gamawakarshen niƙa, abu ne na kowa don ganin ƙarin karkace, tare da kusurwoyin helix 45° ko 60°.Madaidaitan sarewa ƙarshen niƙa(helix angle 0°) ana amfani da su a cikin aikace-aikace na musamman, kamar milling robobi ko haɗakar epoxy da gilashi. Hakanan an yi amfani da injina na ƙarshen sarewa a tarihi don yankan ƙarfe kafin ƙirƙirar injin ƙarshen sarewa da Carl A. Bergstrom na Kamfanin Weldon Tool a 1918.
Akwai masana'anta na ƙarshe tare da madaidaiciyar sarewa helix ko kusurwa-bazuwar helix, da katsewar sarewa geometries, don taimakawa karya kayan cikin ƙaramin yanki yayin yanke (inganta ƙaurawar guntu da rage haɗarin cunkoso) da rage haɗin gwiwar kayan aiki akan manyan yanke. Wasu ƙira na zamani kuma sun haɗa da ƙananan siffofi kamar ƙwanƙwasa kusurwa da kuma chipbreaker. Duk da yake mafi tsada, saboda mafi rikitarwa ƙira da masana'antu tsari, irin wannankarshen niƙana iya dawwama saboda ƙarancin lalacewa da haɓaka yawan aiki a cikibabban gudun inji(HSM) aikace-aikace.
Yana ƙara zama gama gari ga ƙwararrun masana'anta na gargajiya don maye gurbinsu ta hanyar shigar da farashi mai inganciyankan kayan aikin(wanda, ko da yake ya fi tsada da farko, rage lokutan canjin kayan aiki kuma ya ba da damar sauƙi don maye gurbin sawa ko fashe yankan gefuna maimakon duka kayan aiki).
Ana siyar da masana'anta na ƙarshe a cikin duka na masarautu da metric shank da yankan diamita. A cikin Amurka, ana samun awo da sauri, amma ana amfani da shi a wasu shagunan inji ba wasu ba; a Kanada, saboda kusancin ƙasar da Amurka, haka yake. A Asiya da Turai, diamita na awo daidai ne.
Lokacin aikawa: Agusta-04-2022
