Machine taps with spiral flute, 35°, metric thread M4, for stainless steel, code MT21575, coating TiCN
| D 6 H | P | d | l1 | l2 | d1 | Z | a | Item code | On stock |
|---|---|---|---|---|---|---|---|---|---|
| M4 | 0,7 | 4,5 | 63 | 7 | 3,3 | 3 | 3,4 | MT21575.040 TICN | Yes |
Cutting conditions
Material | Strength | Vc |
|---|---|---|
| M.1 | Corrosion- and acid-proof steels | ≤ 750 N/mm² | 8-14 |
| M.2 | Corrosion- and acid-proof steels | 750 - 850 N/mm² | 6-10 |
| M.3 | Corrosion- and acid-proof steels | > 850 N/mm² | 6-10 |
| N.4 | Cooper-zinc alloys, cooper-tin alloys | ≤ 800 N/mm² | 8-12 |
Product attributes
Designed for stainless steel
For straight or spiral flutes, for short chipping materials.
Lead of screw thread
ISO Metric coarse thread
Helix angle = 35°.
Angle of thread
Thread standard
Provides high hardness and at the same time good toughness. Its advantage is in low friction ratio. It is applicable for boring of steels with high strength. It has a lower temperature stability – the cooling is necessary (for example with emulsion).