te mahi a te mīhini hanga rīpene rapa
He momo papatahi te whatu ngira Yongjin, e pai ake ai te pumau me te kounga o te hanganga o te rīpene rapa.
Ngā āhuatanga o te mīhini whatu ngira Yongjin
1. Mā te tikanga whitiki papatahi ka pai ake te hanganga me te kounga o te whatu.
2. Tere tere, ka taea te tere ki te 600-1500 rpm.
3. Pūnaha tahuritanga auau kore-taahiraa, he ngāwari ki te whakahaere.
4. He pumau, he pono hoki te pūnaha parai matua.
5. He tino tika te hanga o ngā wāhanga, ā, he pakari hoki.
Mīhini hanga takai NF2/210, he whakangungu rakau haumaru mārama, he hanga haumaru.