EH-500/500H Kowiri tira Hangarau Hononga whakamahia mo te papu ki te hono ki te ngongo, te ngongo wiri me te whakaiti i te haruru. E rua nga momo. Ko tetahi he momo paiherea, he momo kore-paiherea tetahi. Mo te momo momo kore-paiherea, ka whakarewahia te mata whakapiri wai ki te pupuhi karekau he here. Whakakorehia te waikura o nga mea kua paiherea.