420245.250 High-speed steel HSS Co5 DIN 845
Clamping element
Type N
Tool geometry
Feed direction possibility
Material HSS Co5
D
k 10
MK l1 l2 Z Item code On stock
25 3 147 45 5 420245.250 Yes

Cutting conditions


Material

Strength

Ap

Ae

Vc
fz(mm/z)
Ø 10

Ø 16

Ø 20

Ø 25

Ø 32

Ø 40

Ø 50

Ø 63
P.1 | Free-cutting steels, general construction steels ≤ 600 N/mm² 1xD 0,1xD 37.5 0.028 0.044 0.057 0.071 0.091 0.11 0.12 0.13
P.2 | General construction steels, steel castings ≤ 850 N/mm² 1xD 0,1xD 32.5 0.028 0.044 0.057 0.071 0.091 0.11 0.12 0.13
P.3 | Tool steels low alloyed ≤ 1100 N/mm² 1xD 0,1xD 18 0.028 0.044 0.057 0.071 0.091 0.11 0.12 0.13
P.4 | Heat treatable steels ≤ 900 N/mm² 1xD 0,1xD 25 0.028 0.044 0.057 0.071 0.091 0.11 0.12 0.13
P.5 | Tool steels high alloyed ≤ 1100 N/mm² 1xD 0,1xD 18 0.028 0.044 0.057 0.071 0.091 0.11 0.12 0.13
P.6 | Tool and treated steels > 1100 N/mm² 1xD 0,1xD 16 0.02 0.031 0.035 0.04 0.045 0.054 0.059 0.064
M.2 | Corrosion- and acid-proof steels 750 - 850 N/mm² 1xD 0,1xD 10 0.028 0.044 0.057 0.071 0.091 0.11 0.12 0.13
K.2 | Cast iron (> 240 HB) > 800 N/mm² 1xD 0,1xD 22 0.028 0.044 0.057 0.071 0.091 0.11 0.12 0.13
S.1 | Chrome-nickel alloys ≤ 1500 N/mm² 1xD 0,1xD 8 0.02 0.031 0.035 0.04 0.045 0.054 0.059 0.064

Calculations of cutting conditions

Product attributes

Clamping element

Clamping element

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Morse taper shank according to DIN 228 A.
Tool geometry

Tool geometry

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Helix angle = 35°. Rake angle = 12°.
Material HSS Co5

Material HSS Co5

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Very high performance high speed steel with good toughness for milling cutters and for milling of materials up to the strength of 1200 MPa.
Type N

Type N

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

Feed direction possibility