ST4

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Workpiece material

1. P1.1 - Very soft low-carbon steels, Purely ferritic steels, Free-cutting steels (4)
2. P1.2 - Steels  (4)
3. P1.3 - Normal tool steel, High-alloy steels (4)
4. H2.1 - Steel > 42 - ≤ 50 HRC (4)
5. M3.1 - Stainless steel (4)
6. M3.2 - Difficult Stainless steel (4)
7. K4.1 - Cast iron (4)
8. N5.1 - Aluminium Si < 5% (4)
9. N5.2 - Aluminium Si > 5% (4)
10. N5.3 - Copper, copper alloys (4)

Type of end mill

1. Schachtfrees (Semi) finish frees (4)

End face

1. Sharp (4)

d (Cutting Diameter)

1. 2,5 (1)
2. 16,0 (1)
3. 2,0 (1)
4. 18,0 (1)

d1 (Shank diameter)

1. 3 (2)
2. 16 (1)
3. 18 (1)

L1 (Cutting length)

1. 5 (1)
2. 10 (1)
3. 12 (1)
4. 20 (3)
5. 15 (3)
6. 32 (1)
7. 7 (2)
8. 22 (2)
9. 38 (1)
10. 25 (2)
11. 30 (1)
12. 35 (1)
13. 3 (1)

z (Number of flutes)

1. 4 (4)