120508 High-speed steel HSS Co8 DIN 844K
Clamping element
Type N
Tool geometry
Feed direction possibility
Feed direction possibilityD<3
Material HSS Co8
End mills short, 1 tooth cut over centre, type N, plain shank
D
k 10
d
h 6
l1 l2 Z Item code On stock
2 6 51 7 3 120508.020 Yes
2,5 6 52 8 3 120508.025 Yes
3 6 52 8 4 120508.030 Yes
3,5 6 54 10 4 120508.035 Yes
4 6 55 11 4 120508.040 Yes
4 6 55 11 4 120508.045 Yes
5 6 57 13 4 120508.050 No
4,5 6 55 11 4 120508.055 Yes
6 6 57 13 4 120508.060 Yes
6,5 10 66 16 4 120508.065 Yes
7 10 66 16 4 120508.070 Yes
7,5 1 66 16 4 120508.075 Yes
8 10 69 19 4 120508.080 Yes
8,5 10 69 19 4 120508.085 Yes
9 10 69 19 4 120508.090 Yes
9,5 1 69 19 4 120508.095 Yes
10 10 72 22 4 120508.100 No
11 12 79 22 4 120508.110 Yes
12 12 83 26 4 120508.120 No
13 12 83 26 4 120508.130 Yes
14 12 83 26 4 120508.140 No
15 12 83 26 4 120508.150 Yes
16 16 92 32 4 120508.160 Yes
17 16 92 32 4 120508.170 No
18 16 92 32 4 120508.180 Yes
20 20 104 38 4 120508.200 Yes
22 20 104 38 5 120508.220 Yes
25 25 121 45 5 120508.250 Yes
28 25 121 45 5 120508.280 Yes
30 25 121 45 5 120508.300 Yes
32 32 133 53 6 120508.320 Yes

D 40 ≠ DIN 844K

Cutting conditions


Material

Strength

Ap

Ae

Vc
fz(mm/z)
Ø 3

Ø 6

Ø 8

Ø 10

Ø 12

Ø 16

Ø 18

Ø 20

Ø 25

Ø 32

Ø 40
P.1 | Free-cutting steels, general construction steels ≤ 600 N/mm² 1xD 0,1xD 45 0.006 0.015 0.021 0.028 0.034 0.044 0.051 0.057 0.71 0.091 0.11
P.2 | General construction steels, steel castings ≤ 850 N/mm² 1xD 0,1xD 39 0.006 0.015 0.021 0.028 0.034 0.044 0.051 0.057 0.71 0.091 0.11
P.3 | Tool steels low alloyed ≤ 1100 N/mm² 1xD 0,1xD 24 0.006 0.015 0.021 0.028 0.034 0.044 0.051 0.057 0.71 0.091 0.11
P.4 | Heat treatable steels ≤ 900 N/mm² 1xD 0,1xD 30 0.006 0.015 0.021 0.028 0.034 0.044 0.051 0.057 0.71 0.091 0.11
P.6 | Tool and treated steels > 1100 N/mm² 1xD 0,1xD 20 0.0042 0.0105 0.0147 0.0196 0.0238 0.0308 0.0357 0.0399 0.497 0.0637 0.077
M.2 | Corrosion- and acid-proof steels 750 - 850 N/mm² 1xD 0,1xD 15 0.006 0.015 0.021 0.028 0.034 0.044 0.051 0.057 0.71 0.091 0.11
K.2 | Cast iron > 800 N/mm² 1xD 0,1xD 35 0.006 0.015 0.021 0.028 0.034 0.044 0.051 0.057 0.71 0.091 0.11
N.2 | Aluminium cast alloys Si ≤ 600 N/mm² 1xD 0,1xD 160-300 0.0078 0.0195 0.0273 0.0364 0.0442 0.0572 0.0663 0.0741 0.0923 0.1183 0.143
S.1 | Chrome-nickel alloys ≤ 1500 N/mm² 1xD 0,1xD 12 0.0042 0.0105 0.0147 0.0196 0.0238 0.0308 0.0357 0.0399 0.497 0.0637 0.077

Calculations of cutting conditions

Product attributes

Clamping element

Clamping element

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Plain straight shank according to DIN 1835 A.
Tool geometry

Tool geometry

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Helix angle = 30°. Rake angle = 8°.
Feed direction possibility

Feed direction possibility

Type N

Type N

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Universal usage. Suitable for materials up to strength 900 MPa.
Feed direction possibility

Feed direction possibility

Material HSS Co8

Material HSS Co8

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Extra high performance high speed steel with good toughness and great temperature resistance. It is applicable especially for milling of materials with high strength, austenitic steels, steels for warm working, etc.