Jirgin kurciya wani jirgin hannu ne wanda aka yi shi da katako wanda aka kera shi don yanke dunkulen kurciya na namiji da na mace tsakanin katako guda biyu. Ƙungiyar dovetail wani nau'i ne na haɗin gwiwa da ake amfani da shi wajen aikin katako don haɗa katako guda biyu a kusurwar dama. Ana amfani da jirgin dovetail don yanke jeri na yanki mai nisa kusa da nisa, wanda ke haifar da sifar kurbar kurciya. Sakamakon haɗin gwiwa yana da ƙarfi kuma mai ɗorewa, kuma ana amfani da shi sosai wajen yin kayan daki da kayan ɗaki. Jirgin kurciya yana siffanta shi da ƴar ƴar ƴaƴan ƴan sanda a gefe ɗaya da kuma fuskar fuska a daya gefen, wanda ake amfani da shi wajen jagorantar ruwan tare da yankan kusurwa.