684275V High-speed steel HSS Co5 DIN 841
Clamping element
Type NR
Tool geometry
Feed direction possibility
Material HSS Co5
D
js 16
d
H 7
l1 Z Item code On stock
40 16 40 6 684275V.040040 Yes
50 22 50 6 684275V.050050 Yes
60 27 30 8 684275V.060030 Yes
60 27 60 8 684275V.060060 Yes
75 27 35 8 684275V.075035 Yes
75 27 75 8 684275V.075075 Yes
90 27 35 10 684275V.090035 Yes

Cutting conditions


Material

Strength

Ap

Ae

Vc
fz(mm/z)
Ø 40

Ø 50

Ø 60

Ø 75

Ø 90
P.1 | Free-cutting steels, general construction steels ≤ 600 N/mm² 0,8xl1 0,75xD 37.5 0.096 0.102 0.155 0.126 0.132
P.2 | General construction steels, steel castings ≤ 850 N/mm² 0,8xl1 0,75xD 32.5 0.096 0.102 0.155 0.126 0.132
P.3 | Tool steels low alloyed ≤ 1100 N/mm² 0,8xl1 0,75xD 18 0.096 0.102 0.155 0.126 0.132
P.4 | Heat treatable steels ≤ 900 N/mm² 0,8xl1 0,75xD 25 0.096 0.102 0.155 0.126 0.132
P.5 | Tool steels high alloyed ≤ 1100 N/mm² 0,8xl1 0,75xD 18 0.096 0.102 0.155 0.126 0.132
M.2 | Corrosion- and acid-proof steels 750 - 850 N/mm² 0,8xl1 0,75xD 10 0.096 0.102 0.155 0.126 0.132
K.2 | Cast iron (> 240 HB) > 800 N/mm² 0,8xl1 0,75xD 22 0.096 0.102 0.155 0.126 0.132

Calculations of cutting conditions

Product attributes

Clamping element

Clamping element

more +
Straight bore with standard keyway and driving slot according to DIN 138.
Tool geometry

Tool geometry

more +
Helix angle = 30°. Rake angle = 12°.
Material HSS Co5

Material HSS Co5

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

Type NR

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

Feed direction possibility