鉆(zhan)頭是(shi)用以在實體(ti)資料(liao)上鉆(zhan)削出通孔(kong)或盲孔(kong)，并能對已有的(de)孔(kong)擴孔(kong)的(de)刀(dao)。

       常用(yong)的鉆(zhan)(zhan)(zhan)頭主要有麻花鉆(zhan)(zhan)(zhan)、扁(bian)鉆(zhan)(zhan)(zhan)、中(zhong)(zhong)間鉆(zhan)(zhan)(zhan)、深孔(kong)(kong)鉆(zhan)(zhan)(zhan)和套料鉆(zhan)(zhan)(zhan)。擴孔(kong)(kong)鉆(zhan)(zhan)(zhan)和锪鉆(zhan)(zhan)(zhan)雖不(bu)能(neng)在實體資(zi)料上鉆(zhan)(zhan)(zhan)孔(kong)(kong),但習慣(guan)上也將它們(men)歸入鉆(zhan)(zhan)(zhan)頭一類(lei)。麻花鉆(zhan)(zhan)(zhan)、扁(bian)鉆(zhan)(zhan)(zhan)、深孔(kong)(kong)鉆(zhan)(zhan)(zhan)、擴孔(kong)(kong)鉆(zhan)(zhan)(zhan)、锪鉆(zhan)(zhan)(zhan)、中(zhong)(zhong)間鉆(zhan)(zhan)(zhan)等(deng)等(deng)。

     ;  常用(yong)鉆頭(tou)的類型有如下：按(an)依構造分(fen)類有整體式鉆頭(tou)和端焊式鉆頭(tou)。按(an)依鉆枘分(fen)類有直柄鉆頭(tou)和錐柄鉆頭(tou)。

       按依用(yong)途分(fen)類有十種：中間(jian)(jian)鉆(zhan)(zhan)(zhan)(zhan)頭(tou)(tou)：一般用(yong)于鉆(zhan)(zhan)(zhan)(zhan)孔(kong)前打中間(jian)(jian)點(dian)用(yong)。麻花鉆(zhan)(zhan)(zhan)(zhan)頭(tou)(tou): 為工業制造上運用(yong)廣泛的一種鉆(zhan)(zhan)(zhan)(zhan)頭(tou)(tou)。超(chao)硬鉆(zhan)(zhan)(zhan)(zhan)頭(tou)(tou): 鉆(zhan)(zhan)(zhan)(zhan)身之前端或(huo)全部以超(chao)硬合金刀資料制成,運用(yong)于加工資料之鉆(zhan)(zhan)(zhan)(zhan)孔(kong)加工。油孔(kong)鉆(zhan)(zhan)(zhan)(zhan)頭(tou)(tou): 鉆(zhan)(zhan)(zhan)(zhan)身有兩道小孔(kong),切(qie)削劑經(jing)此小孔(kong)到達切(qie)刃部份。

　　   深孔(kong)鉆(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)頭:用(yong)于槍管及石包管之(zhi)鉆(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)孔(kong)加工(gong),又(you)稱(cheng)為(wei)槍管鉆(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)頭。鉆(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)頭鉸刀(dao): 前端(duan)為(wei)鉆(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)頭,后端(duan)為(wei)鉸刀(dao),鉆(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)頭直徑與鉸刀(dao)直徑只差鉸孔(kong)之(zhi)裕留量(liang),也有鉆(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)頭于螺攻絲混合運用(yong),故又(you)稱(cheng)為(wei)混合鉆(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)頭。          錐(zhui)度鉆(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)頭: 當(dang)加工(gong)模具進料(liao)口時,可運用(yong)錐(zhui)度鉆(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)頭。圓柱孔(kong)鉆(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)頭: 也為(wei)沉(chen)頭銑刀(dao),此(ci)種(zhong)鉆(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)頭前端(duan)有一直徑較小(xiao)之(zhi)部(bu)分稱(cheng)為(wei)道桿。圓錐(zhui)孔(kong)鉆(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)頭: 為(wei)鉆(zhan)(zhan)(zhan)(zhan)(zhan)(zhan)削圓錐(zhui)孔(kong)之(zhi)用(yong),其(qi)前端(duan)視點(dian)有90°,60°等各種(zhong)。

       三角(jiao)鉆(zhan)頭(tou): 一種電鉆(zhan)所(suo)運用(yong)之鉆(zhan)頭(tou),其鉆(zhan)柄制成三角(jiao)形之面(mian),使夾頭(tou)可的確固定鉆(zhan)頭(tou)。