Jack Mechanical/Rack Jack
Hoʻolālā ʻia ka jack steel manual e ka mechanical transmission principle. ʻO ia kekahi o nā mea hoʻokiʻekiʻe maikaʻi loa i hoʻohana ʻia i ka hoʻoponopono ʻana a me ke kākoʻo ʻana, etc.
Eia kekahi, ua lanakila ʻo ia i ka hemahema o nā jack hydraulic maʻamau nona ke kiʻekiʻe haʻahaʻa a me ka wikiwiki ʻaʻole o ka mana i ka wā e kahe ai ka aila.