Bakin karfe lug irin wuka ƙofar bawul flange misali ne bisa ga DIN PN10, PN16, Class 150 da JIS 10K.A m iri-iri na bakin karfe zažužžukan suna samuwa ga abokan ciniki, kamar CF8, CF8M, CF3M, 2205, 2207. Knife kofa bawuloli ake amfani da wani fadi da kewayon aikace-aikace, kamar ɓangaren litattafan almara da takarda, ma'adinai, girma kai, sharar gida ruwa. magani, da dai sauransu.