Sumitomo General Catalog 2025-2026

GSX MILL Endmills (2 Flutes) GSX 20000C-4D Type

Ti Alloy / Heat Resistant Alloy

Tempered Steel / Die Steel

Hardened Steel 45 to 55HRC

Hardened Steel 55 to 60HRC

Stainless Steel

General Steel

Carbon Steel

Alloy Steel

Pre-hardened Steel

Cast Iron

Corner

Flutes

Coat

Side Milling

Groove Finishing

Face Milling

Helix Angle

Spot Facing

Fig 1

Fig 2

APMX

APMX

15°

LF

LU

LF

DC

Tolerance

I

D ≤ 3.0

0 -0.015 0 -0.020 0 -0.030

3.0 < D ≤ 12

12.0 < D

Body

Dimensions ( mm )

Dia. DC

Cutting Edge Length APMX

Neck Length LU

Overall Length LF

Shank Dia. DMM

Cat. No.

Fig

GSX20050C-4D  GSX20100C-4D  GSX20150C-4D  GSX20200C-4D  GSX20250C-4D  GSX20300C-4D  GSX20350C-4D  GSX20400C-4D  GSX20450C-4D  GSX20500C-4D  GSX20550C-4D  GSX20600C-4D  GSX20650C-4D  GSX20700C-4D  GSX20750C-4D  GSX20800C-4D  GSX20850C-4D  GSX20900C-4D  GSX20950C-4D  GSX21000C-4D  GSX21050C-4D  GSX21100C-4D  GSX21150C-4D  GSX21200C-4D  GSX21300C-4D  GSX21400C-4D  GSX21500C-4D  GSX21600C-4D  GSX21700C-4D  GSX21800C-4D  GSX21900C-4D  GSX22000C-4D  GSX22500C-4D 

0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0 6.5

2.0 4.0 6.0 8.0

2.4 5.0

40 40 40 40 50 50 50 50 60 60 60 60 70 80 80 80 90 90 90 90

4 4 4 4 4 6 6 6 6 6 6 6 8 8 8 8

1 1 1 1 1 1 1 1 1 1 1 2 1 1 1 2 1 1 1 2 1 1 1 2 1 1 1 2 1 1 1 2 2

7.0

9.0 11.0 13.5 15.5 17.5 19.5 22.0 24.0

10.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 26.0 28.0 30.0 32.0 34.0 36.0 38.0 40.0 42.0 44.0 46.0 48.0 52.0 56.0 60.0 64.0 68.0 72.0 76.0 80.0

-

28.0 30.0 32.0

7.0 7.5

8.0 8.5 9.0 9.5

-

36.0 38.0 40.0

10 10 10 10 12 12 12 12 16 16 16 16 20 20 20 20 25

10.0 10.5 11.0 11.5 12.0 13.0 14.0 15.0 16.0 17.0 18.0 19.0 20.0 25.0

-

44.5 46.5 48.5

100 100 100 100 110 120 120 120 130 130 140 140 160

-

55.5 59.5 63.5

-

72.5 76.5 80.5

- -

100.0

Grade: ACF20

Endmill Identification (GSXMILL Series Only) Series Code GSX 2 0100 C - 4D Dia.

Number of Teeth

Cutting Edge Cutting Edge Length C: Gash Land

I 54

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