Sumitomo General Catalog 2025-2026

Global Standard Solid Endmills GSX MILL Series

■ Product Range

Cutting Edge Length

1.5D

2D

3D

4D

C Type

S Type

C Type

S Type

C Type

S Type

C Type

GSX20000C-1.5D GSX20000S-2D GSX20000C-2D

GSX20000C-3D

GSX20000C-4D GSX20000S-4D

GSX20000S-3D

Flutes

ø0.5 to ø25.0mm

ø0.5 to ø25.0mm

ø0.5 to ø25.0mm

ø0.5 to ø25.0mm

ø0.3 to ø25.0mm

ø0.5 to ø25.0mm

ø0.5 to ø25.0mm

GSX30000C-1.5D

GSX30000C-2D

Flutes

ø1.0 to ø20.0mm

ø1.0 to ø12.0mm

GSX40000C-1.5D GSX40000S-2D GSX40000C-2D

GSX40000C-4D GSX40000S-4D

GSX40000C-3D

GSX40000S-3D

I

Flutes

ø1.0 to ø25.0mm

ø1.0 to ø25.0mm

ø1.0 to ø25.0mm

ø1.0 to ø25.0mm

ø1.0 to ø25.0mm

ø1.0 to ø25.0mm

ø1.0 to ø25.0mm

GSXSLT30000C-1.5D

Flutes

ø1.0 to ø12.0mm

GSX40000-R-2D

Flutes

ø3.0 to ø12.0mm

■ High Precision ● Diametrical tolerance decreased to 2/3 of the

■ Long, High Rigidity Flutes (C Type)

Inclination 44μm

Inclination 44μm

Inclination 62μm

Inclination 62μm

previous type. Also features reduced variation and does not require tool diameter correction when replacing tools.

■ Multi-Purpose ●  Optimized flute design of slotted 3

Enables

g

us Drillin

Undulation 18μm Undulation 18μm

Undulation 34μm Undulation 34μm

Continuo

flute (short) type reduces cutting force. (1)  Allows drilling, slot milling and other continuous (compound) applications (2)  Perfect for use with thin sheets and small machining centers.

Plunging Drilling

GSX MILL-4D

Competitor’s Product

Tool Diameter Work Material

ø10 (2 Flutes)

Depth of Cut

a p = 1.38" a e = 0.004" × 25 times

Groove Milling Slot Milling

S50C Cutting Speed 144 SFM (1400 RPM) Feed Rate 9.45" (0.0034" IPT)

Coolant Wet Vertical Machining Centre BT30

■ Application Examples

● Carbon Steel Groove Milling with GSX20000C

● Cast Iron Groove Milling with GSX20000C

Gash land for stronger cutting edge. Tool Diameter ø6 (2 Flutes) Part Material 1050 Steel Cutting Speed 285 SFM (4,615 RPM) Feed Rate 21.78” IPM (0.0024” IPT) Depth of Cut

GSX coat for improved wear resistance. Tool Diameter ø10 (2 Flutes) Part Material Cast Iron - FCD600 Cutting Speed 217 SFM (2,100 RPM) Feed Rate 11.89” IPM (0.0028” IPT) Depth of Cut a p = 0.197” x 5 times a e = 0.394” Coolant Dry Vertical Machining Centre BT40

a p = 0.118” a e = 0.236”

Coolant Dry Vertical Machining Centre BT50

Breakage

Large amount of wear

● Stainless Steel Machining with GSX20000C

● 1050 Steel Side Milling with GSX20000S

Improved reliability even under wet machining. Tool Diameter ø10 (2 Flutes) Part Material 304 Stainless Cutting Speed 164 SFM (1,591 RPM) Feed Rate 5.00” IPM (0.0016” IPT) Depth of Cut a p = 0.394” a e = 0.0197” Coolant Wet Vertical Machining Centre BT50

The S type delivers optimum sharpness. Tool Diameter ø6 (2 Flutes) Part Material 1050 Steel Cutting Speed 285 SFM (4,615 RPM) Feed Rate 21.8” IPM (0.0024” IPT) Depth of Cut

a p = 0.394” a e = 0.012”

Coolant Dry Vertical Machining Centre BT50

Chipping

Coating peel-off

I 15

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