Ngokuqonda nzulu iimfuno, imiba, kunye neenjongo zabathengi babo, iingcali zobuchwepheshe be-hard alloy ziyakwazi ukubonelela ngesikhokelo kunye neengcebiso ezibanzi, ezineenkcukacha, nezijolise kuzo. Senza uhlalutyo olunzulu lwemiba eyahlukeneyo efana netekhnoloji, iinkqubo, kunye namaqhinga, silungiselela izisombululo ngokukodwa kumthengi ngamnye. Olu hlalutyo lweengcali kunye nokwenza ngokwezifiso kunceda abathengi ekufezekiseni iziphumo ezibalaseleyo kunye nempumelelo kwicandelo le-hard alloy. Ulwazi olubanzi lobuchwephesha lweengcali lusebenza njengesiseko esomeleleyo sale nkqubo, sibavumela ukuba bahlangabezane neemfuno ezithile zabathengi, banikezele ngexabiso elikhulu, kwaye banike inkxaso eqhubekayo yophuhliso lwabathengi kuyo yonke intsebenziswano yexesha elide.