Tapper shank end mills short, semicoarse teeth, 35°, type N

420245 High-speed steel HSS Co5 DIN 845

D k 10	MK	l₁	l₂	Z	Item code	On stock
10	1	92	22	4	420245.100	Yes
12	1	96	26	4	420245.120	Yes
13	2	111	26		420245.130	Yes
14	2	111	26	4	420245.140	Yes
16	2	117	32	4	420245.160	Yes
18	2	117	32	4	420245.180	Yes
20	2	123	38	4	420245.200	Yes
22	2	123	38	5	420245.220	Yes
24	3	147	45	5	420245.240	No
25	3	147	45	5	420245.250	Yes
26	3	147	45	5	420245.260	Yes
28	3	147	45	5	420245.280	Yes
30	3	147	45	6	420245.300	No
32	4	178	53	6	420245.320	No
36	4	178	53	6	420245.360	Yes
40	4	188	63	6	420245.400	No
45	4	188	63	6	420245.450	Yes
50	5	233	75	6	420245.500	Yes
56	5	233	75	8	420245.560	No
63	5	248	90	8	420245.630	Yes

Cutting conditions

Material	Strength	A_p	A_e	V_c	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

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Morse taper shank according to DIN 228 A.

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Helix angle = 35°. Rake angle = 12°.

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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.

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