鉆(zhan)頭顧(gu)名思義指(zhi)的(de)(de)是(shi)用(yong)(yong)(yong)來進行鉆(zhan)孔(kong)(kong)(kong)或(huo)者擴(kuo)孔(kong)(kong)(kong)的(de)(de)刀(dao)(dao)具,這(zhe)種鉆(zhan)頭一般是(shi)采用(yong)(yong)(yong)金屬材(cai)質(zhi)制造(zao)的(de)(de),是(shi)用(yong)(yong)(yong)以在實體材(cai)料上鉆(zhan)削出通孔(kong)(kong)(kong)或(huo)盲(mang)孔(kong)(kong)(kong)的(de)(de)刀(dao)(dao)具。麻花鉆(zhan)是(shi)應用(yong)(yong)(yong)最廣的(de)(de)孔(kong)(kong)(kong)加工刀(dao)(dao)具。通常(chang)直徑范圍為0.25~80毫米。它主(zhu)要由鉆頭工(gong)作部分(fen)和柄(bing)部構成。工(gong)作部分(fen)有兩條螺旋形(xing)的溝槽(cao),形(xing)似麻花,因而得名...進入鉆頭知識講堂>>