1. waihona: pālahalaha, triangular a me nā ʻano ʻē aʻe, i hoʻohana nui ʻia no ka wehe ʻana i ka slag wili a me nā mea paʻakikī ʻē aʻe.
2. ʻO ka pulupulu uea: ua māheleʻia i ka lima lōʻihi a me ka lima pōkole.Hana ʻia ka ʻaoʻao hope o ka pulupulu me ka uwea kila lahilahi, kahi i hoʻohana ʻia e wehe i ka ʻōpala a me ke koena i waiho ʻia ma hope o ka ʻoki ʻana e nā mea hana ʻē aʻe.Hoʻohana ʻia ka pūʻolo uea kila ʻē aʻe me ka uea kila ma nā kihi ʻelua no nā māwae a me nā lua.
3. ʻO ka pahi koʻi: ʻo ka lōʻihi o ka lau ma kahi o 50 ~ 100cm, maʻamau i hana ʻia me ka lāʻau lāʻau a i ʻole ka paipu kila hollow;ʻO ka laulā ākea 40mm ~ 20cm, ʻo ka mea maʻamau ke kila kalapona a i ʻole ke kila tungsten.Hoʻohana nui ʻia e wehe i ka ʻōpala, ka ʻili oxide, ka uhi kahiko a me ka lepo mai ka mokulele.
4. hāmare rust: maʻamau ma nā ʻaoʻao ʻelua o ka maka, ʻo kekahi ʻaoʻao he "hoʻokahi" ʻano, ʻo ka ʻaoʻao ʻē aʻe he "│", ʻo ka pahi ma kahi o 20mm ākea, hoʻohana nui ʻia e kikeke i ka ʻōpala, ka ʻoki ʻoki a me ka ʻili kahiko.Aia kekahi hāmare kiko no ka hoʻomaʻemaʻe ʻana i ka ʻōpala mai nā poho hohonu.
5. scraper: ʻike nui ʻia ʻo "scraping", he palahalaha, ʻāwili, nā ʻaoʻao ʻelua, i hana ʻia me ke kila kalapona, ma kahi o 20cm ka lōʻihi, ʻano palahalaha me ka pahi koʻi, kuʻekuʻe lima e wehe i ka Angle hao i hope, ʻōpala a me ka lepo;Aia hoʻi kahi ʻōpala kiko me ka hopena kikoʻī e wehe ai i ka ʻōpala a me ka lepo mai nā māwae.

ʻO ka mea ma luna nei he mea hoʻoheheʻe flange derusting mea hana, hiki iā mākou ke hoʻomaopopo, inā he pono no kahi hoaaloha, hiki iā ʻoe ke nīnau iā DHDZ.