820070 High-speed steel HSS ~DIN 855 A
Clamping element
Type N
Tool geometry
Material HSS
Half circle milling cutters concave
R
H 11
D
js 16
S d
H 7
Z Item code On stock
1 50 6 16 14 820070.010 Yes
1,25 50 6 16 14 820070.0125 Yes
1,6 50 8 16 14 820070.016 Yes
2 50 9 16 14 820070.020 Yes
2,5 63 10 22 12 820070.025 Yes
3 63 12 22 12 820070.030 Yes
3,15 63 12 22 12 820070.0315 Yes
3,5 63 16 22 12 820070.035 Yes
4 63 16 22 12 820070.040 Yes
4,5 63 18 22 12 820070.045 Yes
5 63 20 22 12 820070.050 No
6 80 24 27 12 820070.060 Yes
6,3 80 24 27 12 820070.063 Yes
7 80 24 27 12 820070.070 Yes
8 80 32 27 12 820070.080 No
9 100 32 32 12 820070.090 Yes
10 100 36 32 12 820070.100 Yes
12 100 40 32 12 820070.120 Yes
12,5 100 40 32 12 820070.125 Yes
16 125 50 32 10 820070.160 Yes
20 125 60 32 10 820070.200 Yes

Cutting conditions


Material

Strength

Ap

Ae

Vc
fz(mm/z)
Ø 50

Ø 63

Ø 80

Ø 100
P.1 | Free-cutting steels, general construction steels ≤ 600 N/mm² 1xR 1x2R 30 0.08 0.1 0.12 0.14
P.4 | Heat treatable steels ≤ 900 N/mm² 1xR 1x2R 20 0.08 0.1 0.12 0.14
K.1 | Cast iron < 240 HB 1xR 1x2R 25 0.08 0.1 0.12 0.14
K.2 | Cast iron > 240 HB 1xR 1x2R 17 0.08 0.1 0.12 0.14

Calculations of cutting conditions

Product attributes

Clamping element

Clamping element

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Straight bore with standard keyway according to DIN 138.
Tool geometry

Tool geometry

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Helix angle = 0°. Rake angle = 10°.
Type N

Type N

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Universal usage. Suitable for materials up to strength 900 MPa.
Material HSS

Material HSS

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High speed steel of average performance, it is applicable especially for cutters of smaller diameters and for milling of materials up to the strength of 900 MPa.