ʻO ka wili uila ʻO nā kikoʻī nui he 4, 6, 8, 10, 13, 16, 19, 23, 25, 32, 38, 49mm, etc. ʻo ka helu e pili ana i ke anawaena kiʻekiʻe o ka drill bit drilled ma ke kila me ka ikaika tensile o 390n / mm.No nā metala nonferrous, plastics a me nā mea ʻē aʻe, ka ma ...
Heluhelu hou aku