I.Huahana huahana:
ʻO ka huahana kahi o kahi kumu hoʻohālike a heʻumi mau kiko'ī likeʻole o ka papa waena, kūpono no ka nui o nā papa hana likeʻole. Hoʻohana nuiʻia i ka pepa pepa, kāpiliʻana a me nāʻoihana maikaʻi a me nā hana hana a me nā keʻena. He mea hana kūikawā ia no ka ho'āʻoʻana i ka ikaika o ke kaniʻana o ka pepa a me ka kāleka.
U.1 0.100-0.140 mm
U.2 0.141-0.170 MM
U.3 0.171-0.200 mm
U No.4 0.201-0.230 mm
U No.5 0.231-0.280 mm
U No.6 0.281-0.320 MM
U No.7 0.321-0.370 MM
U No.8 0.371-0.420 MM
U No.9 0.421-0.500 mm
U no.10 0.501-0.580 mm