7 / 11 / 12 Degree Taper Chisel Drill Bit no nā mea hana wili pōhaku puka liʻiliʻi.

ʻO ke ʻano ʻo Chisel bit arbides ʻano ʻano chisel ma nā ʻāpana drill.like me nā ʻāpana chisel liʻiliʻi, ʻokoʻa ko lākou degere a me nā anawaena.I kēia manawa, ʻo nā ʻāpana keʻa ka maʻamau o nā ʻōlelo aʻoaʻo carbide a pau, me nā ʻano chisel, keʻa a i ʻole nā ​​ʻano pihi, ma mua o ka pau ʻana o nā carbide, hiki ke wili ʻia nā carbide i ʻoi aku ka ʻoi i ka wā e pau ai ka carbide.