Sumitomo General Catalog 2025-2026

GSX MILL 4 Flute Radius Endmills GSX 40000-R-2D Type

Recommended Cutting Conditions 1. If the machine cannot achieve the standard spindle speed, please use the maximum spindle speed available. 2. If cutting noise and vibration occur, please reduce the cutting conditions accordingly. 3. For groove milling of stainless steel, use 60% of the recommended spindle speed and 40% of the recommended feed rate. (*)

a e

DC

Side Milling

Work Material Cutting Conditions

Alloy Steel SCM (25 to 35HRC)

Steel for Structure, Carbon Steel, Cast Iron SS, SC, FC (150 to 250HB)

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

Hardened Steel (45 to 55HRC)

Stainless Steel (*) SUS304, SUS316

Heat-Resistant Alloy Titanium Alloy

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Feed Rate (mm/min)

Feed Rate (mm/min)

Feed Rate (mm/min)

Feed Rate (mm/min)

Feed Rate (mm/min)

Feed Rate (mm/min)

Spindle Speed (min -1 )

Spindle Speed (min -1 )

Spindle Speed (min -1 )

Spindle Speed (min -1 )

Spindle Speed (min -1 )

Spindle Speed (min -1 )

DC (mm)

12,800 6,800 4,600 3,400 2,800 2,300

12,000 6,400 4,300 3,200 2,600 2,200

8,300 4,400 3,000 2,200 1,800 1,500

6,000 3,200 2,200 1,600 1,300 1,100

6,000 3,200 2,200 1,600 1,300 1,100

3,700 2,000 1,400 1,000

2.0 4.0 6.0 8.0

570 730 770 770 780 780

380 490 520 520 520 530

230 300 320 320 320 320

150 200 210 210 210 210

130 170 180 180 180 180

70 90

100 100 100 100

800 700

10.0 12.0

a p a e

1.5DC 0.1DC

1.5DC 0.1DC

1.5DC 0.05DC

1.0DC 0.02DC

1.5DC 0.1DC

1.0DC 0.05DC

Standard Depth of Cut

Groove Milling

Work Material Cutting Conditions

Alloy Steel SCM (25 to 35HRC)

Steel for Structure, Carbon Steel, Cast Iron SS, SC, FC (150 to 250HB)

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

Hardened Steel (45 to 55HRC)

Stainless Steel (*) SUS304, SUS316

Heat-Resistant Alloy Titanium Alloy

Feed Rate (mm/min)

Feed Rate (mm/min)

Feed Rate (mm/min)

Feed Rate (mm/min)

Feed Rate (mm/min)

Feed Rate (mm/min)

Spindle Speed (min -1 )

Spindle Speed (min -1 )

Spindle Speed (min -1 )

Spindle Speed (min -1 )

Spindle Speed (min -1 )

Spindle Speed (min -1 )

DC (mm)

12,800 6,800 4,600 3,400 2,800 2,300

12,000 6,400 4,300 3,200 2,600 2,200

8,300 4,400 3,000 2,200 1,800 1,500

6,000 3,200 2,200 1,600 1,300 1,100

6,000 3,200 2,200 1,600 1,300 1,100

3,700 2,000 1,400 1,000

2.0 4.0 6.0 8.0

570 730 770 770 780 780

380 490 520 520 520 530

230 300 320 320 320 320

150 200 210 210 210 210

130 170 180 180 180 180

70 90

100 100 100 100

10.0 12.0

800 700

Groove Milling a p

0.5DC

0.5DC

0.2DC

0.05DC

0.3DC

0.1DC

Side Milling (High Speed Machining Centre)

Work Material Cutting Conditions

Alloy Steel SCM (25 to 35HRC)

Steel for Structure, Carbon Steel, Cast Iron SS, SC, FC (150 to 250HB)

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

Hardened Steel (45 to 55HRC)

Stainless Steel (*) SUS304, SUS316

Feed Rate (mm/min)

Feed Rate (mm/min)

Feed Rate (mm/min)

Feed Rate (mm/min)

Feed Rate (mm/min)

Spindle Speed (min -1 )

Spindle Speed (min -1 )

Spindle Speed (min -1 )

Spindle Speed (min -1 )

Spindle Speed (min -1 )

DC (mm)

47,800 2,200 47,800 1,600 39,800 1,200 31,800

15,900

2.0

900

400

4.0 23,900 2,600 23,900 1,900 19,900 1,400 15,900 1,100 8,000 490 6.0 16,000 2,700 16,000 2,000 13,300 1,500 10,600 1,200 5,300 510 8.0 12,000 2,700 12,000 2,000 10,000 1,500 8,000 1,200 4,000 520 10.0 9,600 2,700 9,600 2,000 8,000 1,500 6,400 1,200 3,200 520 12.0 8,000 2,700 8,000 2,000 6,700 1,500 5,300 1,200 2,700 520 Standard Depth of Cut a p 1.5DC 1.5DC 1.5DC 1.0DC 1.5DC a e 0.05DC 0.05DC 0.05DC 0.02DC 0.05DC

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