A mbale kugawa, woyamba clamping poyambira aumbike pa mbale yogawira, ndi chachiwiri clamping poyambira aumbike pa kugawa mbale;mmene, poyambira clamping poyambira ili m'mphepete mwa mbale kugawa, kotero yachiwiri chinkhoswe poyambira ili pamwamba pa mbale olekanitsa.