End mils extra long, type NR, 30°, Weldon shank

125215EHigh-speed steel HSS Co5

D k 10	d h 6	l₁	l₂	Z	Item code	On stock
10	10	110	60	4	125215E.100	Yes
12	12	137	80	4	125215E.120	Yes
14	12	137	80	4	125215E.140	Yes
16	16	160	100	4	125215E.160	Yes
18	16	160	100	4	125215E.180	Yes
20	20	191	125	4	125215E.200	Yes
22	20	191	125	5	125215E.220	Yes
25	25	216	140	5	125215E.250	Yes
28	25	216	140	5	125215E.280	Yes
30	25	216	140	5	125215E.300	Yes
32	32	260	180	6	125215E.320	Yes

Cutting conditions

Material	Strength	A_p	A_e	v_c	fz(mm/z) Ø 10	Ø 12	Ø 16	Ø 20	Ø 25	Ø 32
P.1 \| Free-cutting steels, general construction steels	≤ 600 N/mm²	4xD	0,2xD	28	0.06	0.067	0.081	0.11	0.1495	0.161
P.2 \| General construction steels, steel castings	≤ 850 N/mm²	4xD	0,2xD	23	0.06	0.067	0.081	0.11	0.1495	0.161
P.3 \| Tool steels low alloyed	≤ 1100 N/mm²	4xD	0,2xD	29	0.06	0.067	0.081	0.11	0.1495	0.161
P.4 \| Heat treatable steels	≤ 900 N/mm²	4xD	0,2xD	17	0.06	0.067	0.081	0.11	0.1495	0.161
P.5 \| Tool steels high alloyed	≤ 1100 N/mm²	4xD	0,2xD	12	0.06	0.067	0.081	0.11	0.1495	0.161
M.1 \| Corrosion- and acid-proof steels	≤ 750 N/mm²	4xD	0,2xD	17	0.06	0.067	0.081	0.11	0.1495	0.161
M.2 \| Corrosion- and acid-proof steels	750 - 850 N/mm²	4xD	0,2xD	15	0.06	0.067	0.081	0.11	0.1495	0.161
M.3 \| Corrosion- and acid-proof steels	> 850 N/mm²	4xD	0,2xD	13	0.06	0.067	0.081	0.11	0.1495	0.161
K.1 \| Cast iron (≤ 240 HB)	≤ 820 N/mm²	4xD	0,2xD	28	0.06	0.067	0.081	0.11	0.1495	0.161
N.4 \| Cooper-zinc alloys, cooper-tin alloys	≤ 850 N/mm²	4xD	0,2xD	32	0.06	0.067	0.081	0.11	0.1495	0.161
S.2 \| Titanium, Titanium alloys	≤ 1250 N/mm²	4xD	0,2xD	11	0.042	0.0469	0.0567	0.077	0.1047	0.1127

Calculations of cutting conditions

Straight shank with clamping flat (Weldon) according to DIN 1835 B.

For roughing operation and materials of lower and medium strength (up to 700 MPa), surface roughness Ra 12,5 and more.

Helix angle = 30°. Rake angle = 12°.

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