Spiral flute machine taps,Din371 Din376
High speed steel,ground thread.
Type of Thread: Metric ISO thread.
Tap Tolerance:Class 2 for 6H fit.
Flute Type:Spiral flute.
Surface Treatment:Bright.
Application:For machine tapping of through holes.
Size: M2-M10.
| d1 | Pitch | d2 | tail | Pre hole | l1 | l2 |
| M2 | 0.4 | 2.8 | 2.1 | 1.6 | 45 | 8 |
| M2.2 | 0.45 | 2.8 | 2.1 | 1.75 | 45 | 9 |
| M2.3 | 0.4 | 2.8 | 2.1 | 1.9 | 45 | 9 |
| M2.5 | 0.45 | 2.8 | 2.1 | 2.05 | 50 | 9 |
| M2.6 | 0.45 | 2.8 | 2.1 | 2.1 | 50 | 9 |
| M3.0 | 0.5 | 3.5 | 2.7 | 2.5 | 56 | 6 |
| M3.5 | 0.6 | 4 | 3 | 2.9 | 56 | 7 |
| M4 | 0.7 | 4.5 | 3.4 | 3.3 | 63 | 7.5 |
| M5 | 0.8 | 6 | 4.9 | 4.2 | 70 | 8.5 |
| M6 | 1 | 6 | 4.9 | 5 | 80 | 11 |
| M7 | 1 | 7 | 5.5 | 6 | 80 | 11 |
| M8 | 1.25 | 8 | 6.2 | 6.8 | 90 | 14 |
| M10 | 1.5 | 10 | 8 | 8.5 | 100 | 16 |