Half circle milling cutters concave, code 820075V, radius 5 mm

820075V.050High-speed steel HSS Co5~DIN 855A

R H 11	D js 16	S	d H 7	Z	Item code	On stock
5	63	20	22	10	820075V.050	Yes

Cutting conditions

Material	Strength	A_p	A_e	V_c	fz(mm/z) Ø 50	Ø 63	Ø 80	Ø 100	Ø 125
P.1 \| Free-cutting steels, general construction steels	≤ 600 N/mm²	1xR	2xR	37.5	0.08	0.1	0.12	0.14	0.142
P.3 \| Tool steels low alloyed	≤ 1100 N/mm²	1xR	2xR	18	0.08	0.1	0.12	0.14	0.142
P.4 \| Heat treatable steels	≤ 900 N/mm²	1xR	2xR	25	0.08	0.1	0.12	0.14	0.142
P.6 \| Tool and treated steels	> 1100 N/mm²	1xR	2xR	16	0.056	0.07	0.084	0.098	0.0994
M.2 \| Corrosion- and acid-proof steels	750 - 850 N/mm²	1xR	2xR	10	0.08	0.1	0.12	0.14	0.142
K.1 \| Cast iron (≤ 240 HB)	≤ 820 N/mm²	1xR	2xR	30	0.08	0.1	0.12	0.14	0.142
K.2 \| Cast iron (> 240 HB)	> 800 N/mm²	1xR	2xR	22	0.08	0.1	0.12	0.14	0.142

Calculations of cutting conditions

Straight bore with standard keyway according to DIN 138.

Helix angle = 0°. Rake angle = 10°.

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

Very high performance high speed steel with good toughness for milling cutters and for milling of materials up to the strength of 1200 MPa.