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End Mills With Corner Radius B257X

Code No. B257X-Dc×R

Dc 0

R

-0.02

UMG Carbide

AlTiN X-NaNo

Dc 0 -0.02

AlTiN B257X

R ±0.01 R0.1 R0.2 R0.3 R0.5 R0.1 R0.2 R0.3 R0.5 R0.2 R0.3 R0.5 R1 R0.2 R0.3 R0.5 R1

Lc mm

L mm

d h6

3 3 3 3 4 4 4 4 4 5 5 5 5 6 6 6 6 6 6 8 8 8 8 8 8 8

10 10 10 10 15 15 15 15 15 18 18 18 18 20 20 20 20 20 20 25 25 25 25 25 25 25 30 30 30 30 30 30 30 40 40 40 40 40 40 40 50 50 50 50 50 50 60 60 60 60 60 60 60

50 50 50 50 60 60 60 60 60 70 70 70 70 80 80 80 80 80 80

3 3 3 3 4 4 4 4 4 5 5 5 5 6 6 6 6 6 6 8 8 8 8 8 8 8

30°

N

Type of Operation

d

R1

Work Material P H M K N S

R1.5

R2

R0.2 R0.3 R0.5

100 100 100 100 100 100 100 100 100 100 100 100 100 100 110 110 110 110 110 110 110 140 140 140 140 140 140 160 160 160 160 160 160 160

P Steel

R1

R1.5

R2 R3

H <38HRC

Hardened Steel

10 10 10 10 10 10 10 12 12 12 12 12 12 12 16 16 16 16 16 16 20 20 20 20 20 20 20

R0.2 R0.3 R0.5

10 10 10 10 10 10 10 12 12 12 12 12 12 12 16 16 16 16 16 16 20 20 20 20 20 20 20

H <48HRC

Hardened Steel

H <56HRC

R1

Hardened Steel

R1.5

R2 R3

M Stainless Steel

R0.2 R0.3 R0.5

K Cast Iron

R1

N Copper

R1.5

R2 R3

Feature of product: End Mills with Corner Radius- 2 Flutes · Long Length Widely used in roughing 3D curved profile and normal processing. Coating with AlTiN to have perfect wear resistance.

R0.5

R1

R1.5

R2 R3 R4

Suitable for various steel materials up to HRC56.

R0.5

R1

R1.5

R2 R3 R4 R5

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