一、螺絲攻有幾種

螺絲(si)攻(gong)(gong)(gong)因使用的(de)目的(de)不同而有種種形狀，JIS規(gui)格(ge)上就規(gui)定(ding)有手絞絲(si)攻(gong)(gong)(gong)、螺帽絲(si)攻(gong)(gong)(gong)、管用絲(si)攻(gong)(gong)(gong)等等。主(zhu)要種類如下：

1、等徑手絞絲攻：一般用手絞絲攻（SKH.SKS）、鑄(zhu)鐵用(yong)(yong)手(shou)絞(jiao)絲攻(gong)、壓鑄(zhu)件(jian)用(yong)(yong)手(shou)絞(jiao)絲攻(gong)、塑(su)樹脂件(jian)用(yong)(yong)手(shou)絞(jiao)絲攻(gong)、高硬鋼用(yong)(yong)手(shou)絞(jiao)絲攻(gong)、螺絲襯套(tao)用(yong)(yong)絲攻(gong)、加大(da)尺寸用(yong)(yong)手(shou)絞(jiao)絲攻(gong)（SKH.SKS）、碳化(hua)鎢絲攻(gong)。

2、螺帽絲攻：螺(luo)帽絲攻（SKH.SKS）。

3、管用絲攻：一(yi)般管用(yong)(yong)(yong)推(tui)拔(ba)(ba)(ba)絲(si)攻(gong)(gong)（SKH.SHS)、短(duan)螺絲(si)形推(tui)拔(ba)(ba)(ba)絲(si)攻(gong)(gong)、鑄鐵用(yong)(yong)(yong)推(tui)拔(ba)(ba)(ba)絲(si)攻(gong)(gong)、軟(ruan)鐵用(yong)(yong)(yong)推(tui)拔(ba)(ba)(ba)絲(si)攻(gong)(gong)、管用(yong)(yong)(yong)推(tui)拔(ba)(ba)(ba)互塔斷(duan)續絲(si)攻(gong)(gong)、一(yi)般管用(yong)(yong)(yong)平行絲(si)攻(gong)(gong)（SKH.SKS）。

4、先端絲攻：一般用(yong)先(xian)端(duan)絲(si)攻、不銹鋼用(yong)先(xian)端(duan)絲(si)攻、深孔(kong)用(yong)先(xian)端(duan)絲(si)攻、槍(qiang)膛絲(si)攻（Gun Flute Tap）。

5、蝸旋絲攻：一般用(yong)蝸(gua)(gua)旋(xuan)(xuan)絲(si)攻(gong)、不銹鋼用(yong)蝸(gua)(gua)旋(xuan)(xuan)絲(si)攻(gong)、高碳鋼用(yong)蝸(gua)(gua)旋(xuan)(xuan)絲(si)攻(gong)、深孔用(yong)蝸(gua)(gua)旋(xuan)(xuan)絲(si)攻(gong)、左蝸(gua)(gua)旋(xuan)(xuan)絲(si)攻(gong)。

6、無槽絲攻：鋼(gang)(gang)用High Roll Tap無槽(cao)絲攻、鋼(gang)(gang)用New Roll Tap非(fei)圓(yuan)絲攻、非(fei)鐵(tie)(tie)金屬用無槽(cao)絲攻、非(fei)鐵(tie)(tie)金屬用非(fei)圓(yuan)絲攻。

7、柄部特殊絲攻：莫氏推拔(ba)絲(si)攻(gong)(gong)、彎柄絲(si)攻(gong)(gong)、培(pei)安絲(si)攻(gong)(gong)、套柄絲(si)攻(gong)(gong)、長(chang)柄絲(si)攻(gong)(gong)、皮(pi)帶輪(lun)絲(si)攻(gong)(gong)。

8、復合絲攻：有鉆(zhan)(zhan)頭(tou)絲(si)(si)攻(gong)[A型(xing)（鑄鐵用）鉆(zhan)(zhan)頭(tou)絲(si)(si)攻(gong)、B型(xing)（鋼用）鉆(zhan)(zhan)頭(tou)絲(si)(si)攻(gong)]、增(zeng)徑絲(si)(si)攻(gong)、帶絞刀絲(si)(si)攻(gong)、異徑絲(si)(si)攻(gong)、帶道(dao)桿絲(si)(si)攻(gong)。

9、刃部可換絲攻：殼型(xing)絲攻、鑲刃絲攻。

10、其他：直徑(jing)增大絲(si)攻、種(zhong)絲(si)。

二、螺絲攻頭攻和二攻之間的區別

絲錐的頭攻和二攻之(zhi)間的區別如下：

1、造型不同

頭攻(gong)前端多了一小段攻(gong)形的(de)不(bu)完(wan)全(quan)螺紋部分(fen)，在攻(gong)絲過程中(zhong)起導向和降低(di)切(qie)削力的(de)作用。二(er)攻(gong)沒有不(bu)完(wan)全(quan)螺紋部分(fen)。

2、攻絲對象不同

在(zai)攻(gong)(gong)通孔螺(luo)紋(wen)時，只需用頭攻(gong)(gong)就可(ke)以（攻(gong)(gong)到導(dao)向部分(fen)完(wan)全(quan)露出為止）。

對于(yu)(yu)盲(mang)孔(kong)螺(luo)紋(wen)(wen)，如果(guo)想充分利(li)用鉆(zhan)孔(kong)深度，以得到盡可能長(chang)的完(wan)整螺(luo)紋(wen)(wen)，則需使用二(er)攻，二(er)攻特別(bie)適(shi)用于(yu)(yu)盲(mang)孔(kong)螺(luo)紋(wen)(wen)長(chang)度與孔(kong)深尺寸(cun)相(xiang)差(cha)較小的場合。

3、前部錐體不同

頭攻前(qian)部攻體長，便(bian)于導向，容易攻入。

二攻(gong)前部攻(gong)體短(duan)，使螺紋(wen)更圓滑(hua)，螺絲能夠輕易的擰進(jin)去。

4、外觀上不同

頭攻的切削部分(fen)斜(xie)度(du)較(jiao)長，一般有5-7個不完(wan)整牙(ya)形；二攻較(jiao)短(duan)，只有1-2個不完(wan)整牙(ya)形。頭攻前部攻體長，便于導向；二攻前部攻體短(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，適用于(yu)手工攻(gong)(gong)絲。按加(jia)工方式分(fen)類中的機用絲錐一般為(wei)(wei)一支，手用絲攻(gong)(gong)可分(fen)為(wei)(wei)三(san)個一組(zu)或兩個一組(zu)，即頭攻(gong)(gong)、二攻(gong)(gong)、三(san)攻(gong)(gong)。

6、使用順序不同

頭攻(gong)先(xian)攻(gong)出螺紋的輪廓，二攻(gong)在(zai)其基礎上把螺紋做的更圓滑(hua)，使(shi)螺絲能(neng)夠輕(qing)易的擰進(jin)去！頭攻(gong)是用(yong)來攻(gong)第一次(ci)的，二攻(gong)是用(yong)來攻(gong)第二次(ci)的。使(shi)用(yong)的時候一般通過(guo)專(zhuan)用(yong)扳手進(jin)行切削。