Slot drills long, 2-fluted, centre cutting, type N, plain shank
D
e 8
d
h 6
l1 l2 Z Item code On stock
2 6 54 7 2 221408.020 Yes
3 6 56 8 2 221408.030 Yes
4 6 63 11 2 221408.040 Yes
5 6 68 13 2 221408.050 Yes
6 6 68 13 2 221408.060 No
7 10 80 16 2 221408.070 Yes
8 10 88 19 2 221408.080 Yes
9 10 88 19 2 221408.090 Yes
10 10 95 22 2 221408.100 Yes
11 12 102 22 2 221408.110 Yes
12 12 110 26 2 221408.120 Yes
13 12 110 26 2 221408.130 Yes
14 12 110 26 2 221408.140 No
15 12 110 26 2 221408.150 Yes
16 16 123 32 2 221408.160 Yes
18 16 123 32 2 221408.180 Yes
20 20 141 38 2 221408.200 Yes
22 20 141 38 2 221408.220 Yes
24 25 166 45 2 221408.240 Yes
25 25 166 45 2 221408.250 Yes
26 25 166 45 2 221408.260 Yes
28 25 166 45 2 221408.280 Yes
30 25 166 45 2 221408.300 Yes

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
P.1 | Free-cutting steels, general construction steels ≤ 600 N/mm² 0,5xD 1xD 45 0.009 0.022 0.029 0.036 0.044 0.058 0.065 0.073
P.2 | General construction steels, steel castings ≤ 850 N/mm² 0,5xD 1xD 39 0.009 0.022 0.029 0.036 0.044 0.058 0.065 0.073
P.3 | Tool steels low alloyed ≤ 1100 N/mm² 0,5xD 1xD 24 0.009 0.022 0.029 0.036 0.044 0.058 0.065 0.073
P.4 | Heat treatable steels ≤ 900 N/mm² 0,5xD 1xD 30 0.009 0.022 0.029 0.036 0.044 0.058 0.065 0.073
P.5 | Tool steels high alloyed ≤ 1100 N/mm² 0,5xD 1xD 24 0.009 0.022 0.029 0.036 0.044 0.058 0.065 0.073
M.2 | Corrosion- and acid-proof steels 750 - 850 N/mm² 0,5xD 1xD 15 0.009 0.022 0.029 0.036 0.044 0.058 0.065 0.073
K.1 | Cast iron < 240 HB 0,5xD 1xD 35 0.009 0.022 0.029 0.036 0.044 0.058 0.065 0.073
K.2 | Cast iron > 240 HB 0,5xD 1xD 25 0.009 0.022 0.029 0.036 0.044 0.058 0.065 0.073

Calculations of cutting conditions

Product attributes

Clamping element

Clamping element

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Plain straight shank according to DIN 1835 A.
Type N

Type N

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

Feed direction possibility

Norm ISO 1641.

Norm ISO 1641.

Tool geometry

Tool geometry

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Helix angle = 25°. Rake angle = 12°.
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.