End mills extra short, type NR, 30°, Weldon shank
D
k 12
d
h 6
l1 l2 Z Item codeOn stock
302090306124218K.300030 Yes
352090306124218K.350030 Yes
402595328124218K.400032 Yes
5032100368124218K.500036 Yes

Cutting conditions


Material

Strength

Ap

Ae

Vc
fz(mm/z)
Ø 30

Ø 35

Ø 40

Ø 50
P.1 | Free-cutting steels, general construction steels≤ 600 N/mm²1,5xD0,5xD450.1150.130.140.18
P.2 | General construction steels, steel castings≤ 850 N/mm²1,5xD0,5xD390.1150.130.140.18
P.3 | Tool steels low alloyed≤ 1100 N/mm²1,5xD0,5xD240.1150.130.140.18
P.4 | Heat treatable steels≤ 900 N/mm²1,5xD0,5xD300.1150.130.140.18
M.2 | Corrosion- and acid-proof steels750 - 850 N/mm²1,5xD0,5xD150.1150.130.140.18
N.4 | Cooper-zinc alloys, cooper-tin alloys≤ 850 N/mm²1,5xD0,5xD80-1200.1150.130.140.18

Calculations of cutting conditions

Product attributes

Clamping element

Clamping element

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

Type NR

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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

Company norm

Company norm

Tool geometry

Tool geometry

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Helix angle = 30°. Rake angle = 12°.
Material HSS Co8

Material HSS Co8

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Extra high performance high speed steel with good toughness and great temperature resistance. It is applicable especially for milling of materials with high strength, austenitic steels, steels for warm working, etc.