Musammantawa: Φ15mm Φ20mm Φ25mm
Amfani: Kafaffen bututun ruwa da bututun layi
Gabaɗaya ana harba kusoshi da bindigar ƙusa kuma a jefa su cikin kusoshi na ginin. Yawancin lokaci ya ƙunshi ƙusa tare da zoben kaya ko kwala mai riƙe filastik. Aikin zobe da kwalawar saka filastik shine gyara jikin ƙusa a cikin ganga na gun ƙusa, don guje wa karkata ta gefe yayin harbi.
Siffar ƙusa yana kama da ƙusa na siminti, amma an harbe shi a cikin bindiga. Dangantakar da magana, ƙusa ƙusa ya fi kyau kuma ya fi tattalin arziki fiye da ginin hannu. A lokaci guda, yana da sauƙin ginawa fiye da sauran kusoshi. Ana amfani da kusoshi mafi yawa wajen aikin injiniyan katako da injiniyan gine-gine, irin su haɗin gwiwa da injiniyan saman katako, da dai sauransu. Aikin kusoshi shine shigar da ƙusoshin a cikin matrix kamar siminti ko farantin karfe don ɗaure haɗin haɗin.
Harba ƙusa shine amfani da iskar foda da ake samarwa ta hanyar harba bama-bamai marasa tushe a matsayin ikon tura kusoshi a cikin gine-gine kamar itace da bango. Yawanci ya ƙunshi ƙusa da zobe mai haƙori ko kwala mai riƙe da filastik. Babban aikinsa shi ne fitar da ƙusoshi a cikin abubuwan da ake amfani da su kamar siminti ko farantin karfe don ɗaure haɗin gwiwa.
Length: 27mm 32mm 37mm 42mm 47mm 52mm 57mm 62mm 67mm 72mm