一、螺絲攻有幾種

螺(luo)絲(si)攻因使(shi)用的目的不同而有種(zhong)種(zhong)形(xing)狀，JIS規格(ge)上(shang)就規定有手絞絲(si)攻、螺(luo)帽絲(si)攻、管用絲(si)攻等等。主(zhu)要種(zhong)類(lei)如(ru)下：

1、等徑手絞絲攻：一般用手絞絲攻（SKH.SKS）、鑄鐵用(yong)(yong)(yong)手(shou)絞(jiao)絲(si)攻(gong)(gong)、壓鑄件用(yong)(yong)(yong)手(shou)絞(jiao)絲(si)攻(gong)(gong)、塑樹(shu)脂件用(yong)(yong)(yong)手(shou)絞(jiao)絲(si)攻(gong)(gong)、高硬鋼用(yong)(yong)(yong)手(shou)絞(jiao)絲(si)攻(gong)(gong)、螺絲(si)襯套用(yong)(yong)(yong)絲(si)攻(gong)(gong)、加大尺寸(cun)用(yong)(yong)(yong)手(shou)絞(jiao)絲(si)攻(gong)(gong)（SKH.SKS）、碳化鎢絲(si)攻(gong)(gong)。

2、螺帽絲攻：螺帽絲攻（SKH.SKS）。

3、管用絲攻：一(yi)般管用(yong)(yong)推(tui)拔絲攻(gong)(gong)(gong)（SKH.SHS)、短螺絲形(xing)推(tui)拔絲攻(gong)(gong)(gong)、鑄鐵用(yong)(yong)推(tui)拔絲攻(gong)(gong)(gong)、軟鐵用(yong)(yong)推(tui)拔絲攻(gong)(gong)(gong)、管用(yong)(yong)推(tui)拔互塔斷(duan)續絲攻(gong)(gong)(gong)、一(yi)般管用(yong)(yong)平行(xing)絲攻(gong)(gong)(gong)（SKH.SKS）。

4、先端絲攻：一(yi)般用(yong)(yong)先端(duan)絲(si)攻(gong)、不銹鋼用(yong)(yong)先端(duan)絲(si)攻(gong)、深孔用(yong)(yong)先端(duan)絲(si)攻(gong)、槍(qiang)膛絲(si)攻(gong)（Gun Flute Tap）。

5、蝸旋絲攻：一(yi)般用(yong)蝸旋絲(si)攻(gong)(gong)、不(bu)銹鋼用(yong)蝸旋絲(si)攻(gong)(gong)、高碳鋼用(yong)蝸旋絲(si)攻(gong)(gong)、深孔用(yong)蝸旋絲(si)攻(gong)(gong)、左蝸旋絲(si)攻(gong)(gong)。

6、無槽絲攻：鋼用High Roll Tap無槽絲攻、鋼用New Roll Tap非圓絲攻、非鐵金屬用無槽絲攻、非鐵金屬用非圓絲攻。

7、柄部特殊絲攻：莫氏推拔絲(si)(si)攻(gong)、彎柄(bing)絲(si)(si)攻(gong)、培安絲(si)(si)攻(gong)、套柄(bing)絲(si)(si)攻(gong)、長柄(bing)絲(si)(si)攻(gong)、皮帶輪(lun)絲(si)(si)攻(gong)。

8、復合絲攻：有鉆(zhan)頭絲(si)(si)攻(gong)(gong)(gong)(gong)[A型（鑄(zhu)鐵(tie)用）鉆(zhan)頭絲(si)(si)攻(gong)(gong)(gong)(gong)、B型（鋼用）鉆(zhan)頭絲(si)(si)攻(gong)(gong)(gong)(gong)]、增徑絲(si)(si)攻(gong)(gong)(gong)(gong)、帶絞刀絲(si)(si)攻(gong)(gong)(gong)(gong)、異徑絲(si)(si)攻(gong)(gong)(gong)(gong)、帶道桿絲(si)(si)攻(gong)(gong)(gong)(gong)。

9、刃部可換絲攻：殼型絲(si)攻、鑲刃絲(si)攻。

10、其他：直(zhi)徑(jing)增大絲攻、種絲。

二、螺絲攻頭攻和二攻之間的區別

絲錐的(de)頭攻(gong)和二攻(gong)之間的(de)區別如下：

1、造型不同

頭攻前端多了一(yi)小段攻形的(de)不(bu)完全螺(luo)紋(wen)部分，在攻絲過程(cheng)中(zhong)起導向和降低切削力的(de)作(zuo)用。二攻沒有(you)不(bu)完全螺(luo)紋(wen)部分。

2、攻絲對象不同

在攻通孔螺紋(wen)時，只需用頭攻就可以（攻到導(dao)向(xiang)部分完全露(lu)出為止）。

對于盲孔(kong)螺(luo)紋(wen)，如果想充分利用鉆孔(kong)深(shen)(shen)度(du)，以得(de)到盡可能長的完(wan)整螺(luo)紋(wen)，則需使用二攻(gong)，二攻(gong)特別適用于盲孔(kong)螺(luo)紋(wen)長度(du)與孔(kong)深(shen)(shen)尺寸相(xiang)差較小的場合。

3、前部錐體不同

頭攻前部攻體長(chang)，便于導向(xiang)，容(rong)易攻入。

二攻(gong)(gong)前部攻(gong)(gong)體短，使螺紋(wen)更(geng)圓滑，螺絲能夠輕易的擰進去。

4、外觀上不同

頭攻的(de)切削部分斜(xie)度較長(chang)，一般有5-7個不完整牙(ya)形；二(er)攻較短(duan)，只有1-2個不完整牙(ya)形。頭攻前部攻體長(chang)，便于導(dao)向；二(er)攻前部攻體短(duan)。

5、分類方式上不同

絲錐是用來加工內螺紋的刀具，是指碳素工具鋼或合金工具鋼滾牙（或切牙）絲錐，適用(yong)于手工攻絲。按加工方(fang)式分類中(zhong)的機用(yong)絲錐(zhui)一(yi)般為(wei)一(yi)支，手用(yong)絲攻可分為(wei)三個一(yi)組或兩個一(yi)組，即頭攻、二攻、三攻。

6、使用順序不同

頭(tou)攻(gong)(gong)(gong)(gong)先(xian)攻(gong)(gong)(gong)(gong)出螺(luo)紋的輪廓，二(er)攻(gong)(gong)(gong)(gong)在其基礎(chu)上把螺(luo)紋做的更圓滑，使螺(luo)絲能(neng)夠輕易的擰進去！頭(tou)攻(gong)(gong)(gong)(gong)是(shi)用(yong)(yong)來攻(gong)(gong)(gong)(gong)第(di)一(yi)(yi)次(ci)的，二(er)攻(gong)(gong)(gong)(gong)是(shi)用(yong)(yong)來攻(gong)(gong)(gong)(gong)第(di)二(er)次(ci)的。使用(yong)(yong)的時(shi)候一(yi)(yi)般通過專用(yong)(yong)扳手(shou)進行切削。