I ka makahiki 1895, ua hana ka German overtone i ka drill DC mua loa o ka honua.Hana ʻia ka hale i ka hao a hiki ke wili i ka lua 4mm i ka pā kila.A laila ua ʻike ʻia kahi puʻupuʻu uila ʻekolu-phase (50Hz), akā ʻaʻole i haki ka wikiwiki o ka kaʻa ma 3000r/min.I ka makahiki 1914, ua ʻike ʻia nā mea uila e alakaʻi ʻia e nā ʻenekini hoʻokūkū hoʻokahi-phase series, a ʻoi aku ka wikiwiki o ka mīkini ma mua o 10000r/min.I ka makahiki 1927, ua ʻike ʻia kahi mea hana mana alapine waena me kahi alapine mana o 150-200Hz.ʻAʻole wale ia i nā pōmaikaʻi o ka wikiwiki kiʻekiʻe o kahi kaʻa kaʻa hoʻokahi-phase, akā loaʻa pū kekahi i nā pono o kahi ʻano maʻalahi a hilinaʻi hoʻi o kahi kaila uila ʻekolu-phase, akā pono ia e hoʻoikaika ʻia e kahi alapine waena., hoʻohana ʻia.

ʻO ka mea hana mana he mea hana mīkini e hoʻohana ana i ka mīkini uila a i ʻole ka electromagnet e like me ka mana a hoʻokele i ke poʻo hana ma o ka mīkini hoʻouna.Wahi a ka "National Economic Industry Classification" (GB/T4754-2011), aia ka ʻoihana o ka ʻoihana i ka sub-category "Pneumatic and Power Tool Manufacturing" (code C3465) o ka māhele ākea "General Equipment Manufacturing".Hoʻokaʻawale ʻia nā mea hana mana i nā mea hana mana ʻoki metala, nā mea hana mana wili, nā mea hana mana hui a me nā mea hana mana alahao.ʻO nā mea hana mana maʻamauʻO ka wili hāmaʻomaʻu ʻole ʻole DC2808/20V, nā mea wili uila, nā kāʻei kāʻei, nā wili uila, nā wili uila, nā hāmare uila, nā mea hoʻoheheʻe uila, nā mea hoʻolālā uila, nā kihi kihi, nā ʻili uila, nā sanders, nā kihi wili, nā mea puhi, nā mīkini polishing, sander, etc.

ʻO nā ʻoihana o luna o nā mea hana mana nā mea hoʻolako i nā mea maka (e like me nā ʻāpana kila silika, nā uea keleawe enameled, nā ʻāpana alumini, nā plastik, a me nā mea ʻē aʻe), a ʻoi aku ka maʻalahi o ka ʻoihana i nā hoʻololi kumukūʻai o nā mea i ʻōlelo ʻia ma luna.ʻO nā wahi noi o nā mea hana mana e pili ana i ke kūkulu ʻana i nā alanui, nā mea hoʻonaninani, ka hana lāʻau, ka hana metala a me nā ʻoihana hana ʻē aʻe.Hoʻopili ʻia e ke kulekele o ke aupuni e hoʻoulu i ka noi kūloko a me ka hoʻonui ʻana i ka hoʻopukapuka ʻana i nā ʻoihana, ʻo ka hoʻomohala ʻana o ka wā e hiki mai ana o ke alanui kūkulu a me nā ʻoihana hoʻoheheʻe metala ke hoʻohiki nei, no laila ke alakaʻi nei i ka piʻi ʻana o ka noi no ka ʻoihana hana mana.