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	40	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.