Shell end mills, fine teeth, type H

690275V High-speed steel HSS Co5 DIN 841

D js 16	d H 7	l₁	Z	Item code	On stock
30	13	30	8	690275V.030030	Yes
35	16	35	10	690275V.035035	Yes
40	16	4	10	690275V.040040	Yes
50	22	50	12	690275V.050050	No
60	27	60	12	690275V.060060	Yes
75	27	75	14	690275V.075075	Yes

Cutting conditions

Material	Strength	A_p	A_e	V_c	fz(mm/z) Ø 30	Ø 40	Ø 50	Ø 60	Ø 75
P.1 \| Free-cutting steels, general construction steels	≤ 600 N/mm²	0,8xl₁	0,75xD	18	0.075	0.08	0.085	0.097	0.103
P.2 \| General construction steels, steel castings	≤ 850 N/mm²	0,8xl₁	0,75xD	25	0.075	0.08	0.085	0.097	0.103
P.3 \| Tool steels low alloyed	≤ 1100 N/mm²	0,8xl₁	0,75xD	18	0.075	0.08	0.085	0.097	0.103
P.4 \| Heat treatable steels	≤ 900 N/mm²	0,8xl₁	0,75xD	16	0.075	0.08	0.085	0.097	0.103
P.5 \| Tool steels high alloyed	≤ 1100 N/mm²	0,8xl₁	0,75xD	10	0.075	0.08	0.085	0.097	0.103
M.2 \| Corrosion- and acid-proof steels	750 - 850 N/mm²	0,8xl₁	0,75xD	22	0.075	0.08	0.085	0.097	0.103
K.2 \| Cast iron (> 240 HB)	> 800 N/mm²	0,8xl₁	0,75xD	8	0.053	0.056	0.06	0.068	0.072

Calculations of cutting conditions

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Straight bore with standard keyway and driving slot according to DIN 138.

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Helix angle = 20°. Rake angle = 8°.

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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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Designed for milling (finishing) of materials of medium and higher strength (up to 1200 MPa). Surface roughness Ra 3,2; exceptionally even 1,6.