230418H High-speed steel HSS Co8 DIN 327K
Clamping element
Type N
Tool geometry
Feed direction possibility
End face design
Material HSS Co8
New
Slot drills short, 3-fluted centre cutting, type N, Weldon shank
D
e 8
d
h 6
l1 l2 Z Item code On stock
11,7 12 70 13 3 230418H.117 Yes
13,7 12 73 16 3 230418H.137 Yes
15,7 16 79 19 3 230418H.157 Yes
17,7 16 79 19 3 230418H.177 Yes
19,7 20 88 22 3 230418H.197 Yes
21,7 20 88 22 3 230418H.217 Yes
24,7 25 102 26 3 230418H.247 Yes

Cutting conditions


Material

Strength

Ae

Ap

Vc
fz(mm/z)
Ø 12

Ø 16

Ø 18

Ø 20
P.1 | Free-cutting steels, general construction steels ≤ 600 N/mm² 0,5xD 1xD 45 0.044 0.058 0.065 0.073
P.2 | General construction steels, steel castings ≤ 850 N/mm² 0,5xD 1xD 39 0.044 0.058 0.065 0.073
P.3 | Tool steels low alloyed ≤ 1100 N/mm² 0,5xD 1xD 24 0.044 0.058 0.065 0.073
P.4 | Heat treatable steels ≤ 900 N/mm² 0,5xD 1xD 30 0.044 0.058 0.065 0.073
M.2 | Corrosion- and acid-proof steels 750 - 850 N/mm² 0,5xD 1xD 15 0.044 0.058 0.065 0.073
K.1 | Cast iron < 240 HB 0,5xD 1xD 35 0.044 0.058 0.065 0.073
K.2 | Cast iron > 240 HB 0,5xD 1xD 25 0.044 0.058 0.065 0.073
S.2 | Titanium, Titanium alloys ≤ 1250 N/mm² 0,5xD 1xD 12 0.0308 0.0406 0.0455 0.0511

Calculations of cutting conditions

Product attributes

Clamping element

Clamping element

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Straight shank with clamping flat (Weldon) according to DIN 1835 B.
Tool geometry

Tool geometry

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Helix angle = 30°. Rake angle = 12°.
End face design

End face design

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.