I tēnei rāTukua'te kōrero mō te IGU's whakawehe konumohe (kāore i roto te whakawehe mahana IGU).

E rua ngā āputa konumohe rerekē hei whakamahana i te karāhe.

Ko tētahi he rīpene konumohe piko auau teitei, e kiia ana hoki he mokowā konumohe piko, kei raro nei ōna āhuatanga:

1. Ārai-waikura, ārai-waikura, kanapa teitei

2. He ōrite te urunga o te kōhao o te mata o te rīpene konumohe, he tika, kāore he panoni, ā, he pumau te rahi.

3. He kaha nui, he pakari pai, ka taea te whakapiko i tetahi koki mā te mīhini whakapiko.

4. Me whakarite kia pai te mahi a te tātari ngota, kia pai hoki te piri ki ngā momo hiri

Ko tētahi atu he rīpene konumohe noa, e kiia ana hoki he āputa konumohe kāore i piko.'ka honoa mā te hononga kokonga mō te tapawhā, te tapawhā hāngai rānei anake, ka taea'kaua e piko ake ngā koki.

Ko te rahi o te rīpene konumohe he 4mm, 5mm, 5.5mm, 6mm, 6.5mm, 7mm, 8mm, 8.5mm, 9mm, 10mm, 11mm, 11.5mm, 12mm, 14mm, 14.5mm, 15mm, 16mm, 17mm, 18mm, 19mm, 20mm, 21mm, 25mm, 27mm. Ko te matotoru he tata ki te 0.25-0.4mm.