材質：HSS-E
塗層處理：白刀/氮化/鍍鈦/TICN
左牙螺旋絲攻為向上排屑絲攻,切屑由孔內向上排出適合盲孔加工。
※ 詳細規格表如下,特殊規格絲攻可少量訂製※
※ 絲攻規格若有未列出之規格請聯絡我們諮詢※
公制左牙( M )
| 規格 | 精度 |
| M2*0.4L | P1 |
| M2.3*0.4L | P1 |
| M2.5*0.45L | P1 |
| M2.6*0.45L | P1 |
| M3*0.35L | P2 |
| M3*0.5L | P1、2、3、4 |
| M3.5*0.6L | P2 |
| M4*0.5L | P2 |
| M4*0.7L | P2、3、4 |
| M4.5*0.75L | P2 |
| M5*0.5L | P2 |
| M5*0.8L | P2、3、4 |
| M5.5*0.5L | P2 |
| M6*0.5L | P2 |
| M6*0.75L | P2 |
| M6*1L | P2、3、4 |
| M7*0.5L | P2 |
| M7*0.75L | P2 |
| M7*1L | P2 |
| M8*0.5L | P2 |
| M8*0.75L | P2 |
| M8*1L | P2 |
| M8*1.25L | P2 |
| M9*1L | P2 |
| M9*1.25L | P2 |
| M10*0.75L | P2 |
| M10*1L | P2 |
| M10*1.25L | P2 |
| M10*1.5L | P2 |
| M12*1L | P2 |
| M12*1.25L | P2 |
| M12*1.5L | P2 |
| M12*1.75L | P2 |
| M14*1.5L | P2 |
| M14*2L | P2 |
| M16*1.5L | P2 |
| M16*2L | P2 |
| M18*2.5L | P3 |
| M20*2.5L | P3 |
美制左牙(UNC/UNF)
| 規格 | 精度 |
| UNC4-40L | P1 |
| UNC5-40L | P2 |
| UNC6-32L | P2 |
| UNC8-32L | P2 |
| UNF10-32L | P2 |
| UNC10-24L | P2 |
| UNF1/4-32L | P2 |
| UNF1/4-28L | P2 |
| UNC1/4-20L | P2 |
| UNF5/16-24L | P2 |
| UNC5/16-18L | P2 |
| UNF 3/8-24L | P2 |
| UNC3/8-16L | P2 |
| UNF7/16-20L | P2 |
| UNC7/16-14L | P2 |
| UNF1/2-20L | P2 |
| UNC1/2-13L | P2 |