Rig rotary na Gookma yana da nau'o'i daban-daban, max zurfin hakowa daga 10m zuwa 90m, diamita hakowa har zuwa 2.5m.Dukkanin injuna suna sanye da sanannen injin, tare da ƙarfi mai ƙarfi, babban juzu'i, abin dogaro da kwanciyar hankali.Injin ya dace da yanayin ƙasa daban-daban kamar yashi, yumbu, ƙasa mara nauyi, ƙasa mai cika ƙasa, Layer Layer, dutse da dutsen iska da sauransu, sun cika buƙatun don ayyukan tarawa daban-daban kamar rijiyar ruwa, gini, firam ɗin hanyar jirgin ƙasa, gangara. kariya tari, gine-ginen birane, gine-ginen gine-gine, gine-ginen karkara, gyaran wutar lantarki da gyaran shimfidar wuri da dai sauransu, ana amfani da su sosai a duk ginin gine-gine kamar grouting tari, ci gaba da bango, ƙarfafa tushe da dai sauransu, dace da manyan da ƙananan ayyukan gine-gine.