Sumitomo General Catalog 2025-2026

GSX MILL Slot Endmills (3 Flutes) GSXSLT 30000C-1.5D

Ti Alloy / Heat Resistant Alloy

Hardened Steel 45 to 55HRC

General Steel

Carbon Steel

Alloy Steel

Stainless Steel

Pre-hardened Steel

Tempered Steel/Die Steel

Cast Iron

Corner

Fig 1

Fig 2

Flutes

Coat

Helix Angle

Slot Milling

Side Milling

Groove Finishing

Face Milling

Helical Milling

Ramping

Spot Facing

APMX

APMX

15˚

LU

LF

Fig 1

Fig 2

LF

DC

Tolerance

D ≤ 3.0

0 -0.015 0 -0.020 0 -0.030

3.0 < D ≤ 12

12.0 < D

I

Body

Endmill Identification (GSXMILL Series Only) Series Code GSXSLT 3 0100 C - 1.5D Dia.

Dimensions ( mm )

Dia. DC

Cutting Edge Length APMX

Neck Length LU

Overall Length LF

Shank Dia. DMM

Cat. No.

Fig

Number of Teeth

Cutting Edge

Cutting Edge Length

GSXSLT30100C-1.5D  1.0 GSXSLT30150C-1.5D  1.5 GSXSLT30200C-1.5D  2.0 GSXSLT30250C-1.5D  2.5 GSXSLT30300C-1.5D  3.0 GSXSLT30400C-1.5D  4.0 GSXSLT30500C-1.5D  5.0 GSXSLT30600C-1.5D  6.0 GSXSLT30700C-1.5D  7.0 GSXSLT30800C-1.5D  8.0 GSXSLT30900C-1.5D  9.0 GSXSLT31000C-1.5D  10.0 GSXSLT31200C-1.5D  12.0

1.5 2.3 3.0 3.8 4.5 6.0

2.5 3.3 4.0 4.8 6.0

40 40 40 40 45 45 50 50 60 60 70 70 75

4 4 4 4 6 6 6 6 8 8

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

C: Gash Land

7.5

7.5

9.5

9.0 11.0 12.0 14.0 15.0 18.0

-

13.0

-

16.0

10 10 12

- -

Grade: ACF20

Recommended Cutting Conditions 1. For stable machining performance use rigid, high-precision machines and holders. 2. Use air blow when dry machining.

3. Use wet machining for stainless steel, heat-resistant alloy, and titanium alloy applications. 4. Use step machining of 0.1 DC when drilling stainless steel, heat-resistant alloy, and titanium alloy. 5. If the machine cannot achieve the recommended spindle speed, please use the maximum spindle speed available. Side Milling

a e

DC

Tempered Steel, Hardened Steel NAK , HPM (35 to 45HRC)

Carbon Steel SC (150 to 250HB)

Alloy Steel SCM (25 to 35HRC)

Work Material Cutting Conditions

Steel for Structure SS

Heat-Resistant Alloy Titanium Alloy

Hardened Steel (45 to 50HRC)

Stainless Steel SUS304,SUS316

Cast Iron FC

Spindle Speed (min -1 ) 19,600 11,200

Feed Rate (mm/min)

Spindle Speed (min -1 ) 19,600 11,200

Feed Rate (mm/min)

Spindle Speed (min -1 ) 19,600 11,200

Feed Rate (mm/min)

Spindle Speed (min -1 ) 18,300 10,500

Feed Rate (mm/min)

Spindle Speed (min -1 ) 12,700

Feed Rate (mm/min)

Spindle Speed (min -1 )

Feed Rate (mm/min)

Spindle Speed (min -1 ) 11,000

Feed Rate (mm/min)

Spindle Speed (min -1 )

Feed Rate (mm/min)

DC (mm)

9,000 5,300 3,000 2,200 1,600 1,300 1,100

9,000 5,300 3,000 2,200 1,600 1,300 1,100

1.0 2.0 4.0 6.0 8.0

300 410 550 670 670 670 670

300 410 550 670 670 670 670

300 410 550 670 670 670 670

210 280 370 460 460 460 460

130 170 230 270 270 270 270

80

90

65 90

7,300 4,200 3,000 2,200 1,800 1,500

6,400 3,600 2,700 2,000 1,600 1,300

100 140 170 170 170 170

120 150 180 180 180 180

6,400 4,600 3,400 2,800 2,300

6,400 4,600 3,400 2,800 2,300

6,400 4,600 3,400 2,800 2,300

6,000 4,300 3,200 2,600 2,200

120 130 130 130 130

10.0 12.0

1.5DC 0.05DC

1.0DC 0.02DC

a p a e

Standard Depth of Cut

Groove Milling

Tempered Steel, Hardened Steel NAK , HPM (35 to 45HRC)

Carbon Steel SC (150 to 250HB)

Alloy Steel SCM (25 to 35HRC)

Work Material Cutting Conditions

Steel for Structure SS

Heat-Resistant Alloy Titanium Alloy

Hardened Steel (45 to 50HRC)

Stainless Steel SUS304,SUS316

Cast Iron FC

Spindle Speed (min -1 ) 19,600 11,200

Feed Rate (mm/min)

Spindle Speed (min -1 ) 19,600 11,200

Feed Rate (mm/min)

Spindle Speed (min -1 ) 19,600 11,200

Feed Rate (mm/min)

Spindle Speed (min -1 ) 18,300 10,500

Feed Rate (mm/min)

Spindle Speed (min -1 ) 12,700

Feed Rate (mm/min)

Spindle Speed (min -1 )

Feed Rate (mm/min)

Spindle Speed (min -1 ) 11,000

Feed Rate (mm/min)

Spindle Speed (min -1 )

Feed Rate (mm/min)

DC (mm)

9,000 5,300 3,000 2,200 1,600 1,300 1,100

4,500 2,650 1,500 1,150

1.0 2.0 4.0 6.0 8.0

240 320 450 540 540 540 540

300 410 550 670 670 670 670

300 410 550 670 670 670 670

210 280 370 460 460 460 460

130 170 230 270 270 270 270

80

65 85

25 35 50 55

7,300 4,200 3,000 2,200 1,800 1,500

6,400 3,600 2,650 2,000 1,600 1,300

100 140 170 170 170 170

6,400 4,600 3,400 2,800 2,300

6,400 4,600 3,400 2,800 2,300

6,400 4,600 3,400 2,800 2,300

6,000 4,300 3,200 2,600 2,200

100 130

130 800 55 130 650 55 130 500 55

10.0 12.0

Standard Depth of Cut

0.2DC

0.5DC

0.2DC

0.05DC

0.2DC

a p

Slot Milling

Tempered Steel, Hardened Steel NAK , HPM (35 to 45HRC)

Carbon Steel SC (150 to 250HB)

Alloy Steel SCM (25 to 35HRC)

Work Material Cutting Conditions

Steel for Structure SS

Heat-Resistant Alloy Titanium Alloy

Hardened Steel (45 to 50HRC)

Stainless Steel SUS304,SUS316

Cast Iron FC

Spindle Speed (min -1 ) 19,600 11,200

Feed Rate (mm/min)

Spindle Speed (min -1 ) 19,600 11,200

Feed Rate (mm/min)

Spindle Speed (min -1 ) 19,600 11,200

Feed Rate (mm/min)

Spindle Speed (min -1 ) 18,300 10,500

Feed Rate (mm/min)

Spindle Speed (min -1 ) 12,700

Feed Rate (mm/min)

Spindle Speed (min -1 )

Feed Rate (mm/min)

Spindle Speed (min -1 ) 11,000

Feed Rate (mm/min)

Spindle Speed (min -1 )

Feed Rate (mm/min)

DC (mm)

9,000 5,300 3,000 2,200 1,600 1,300 1,100

4,500 2,650 1,500 1,150

1.0 2.0 4.0 6.0 8.0

70 90

90

90

60 80

40 50 70 80 80 80 80

25 30 40 50 50 50 50

20 25 30 40 40 40 40

10 15 20 20

7,300 4,200 3,000 2,200 1,800 1,500

6,400 3,600 2,650 2,000 1,600 1,300

120 160 200 200 200 200

120 160 200 200 200 200

6,400 4,600 3,400 2,800 2,300

6,400 4,600 3,400 2,800 2,300

6,400 4,600 3,400 2,800 2,300

6,000 4,300 3,200 2,600 2,200

130 160 160 160 160

110 130 130 130 130

800 20 650 20 500 20

10.0 12.0

I 119

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