Ana amfani da injin ɗin don cika ruwa ko ruwa mai kauri a cikin kwalabe, kamar: man girki, man lube, shamfu, jam, zuma, man nama, miya, sinadarai na noma, kayan kwalliya da sauransu. Dangane da samfuran daban-daban, yana iya zaɓar hanyar cika daban-daban. : fistan famfo, yin awo, rotor famfo, kwarara mita, nauyi da dai sauransu.