Sumitomo General Catalog 2025-2026

GSX MILL 4 Flute Endmills Sharp Edge GSX 40000S-4D Type

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. In some cases, chattering may occur in early stages of milling but will cease after 2m of cutting. 5. If chatter is a problem, reduce the spindle speed and feed rate indicated in the table below by the same ratio, or reduce the depth of cut. 6. If the machine cannot achieve the recommended spindle speed, please use the maximum spindle speed available.

a e

DC

Side Milling

I

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 55HRC)

Stainless Steel SUS304,SUS316

Cast Iron FC

Spindle Speed (min -1 )

Feed Rate (mm/min)

Spindle Speed (min -1 )

Feed Rate (mm/min)

Spindle Speed (min -1 )

Feed Rate (mm/min)

Spindle Speed (min -1 )

Feed Rate (mm/min)

Spindle Speed (min -1 )

Feed Rate (mm/min)

Spindle Speed (min -1 )

Feed Rate (mm/min)

Spindle Speed (min -1 )

Feed Rate (mm/min)

Spindle Speed (min -1 )

Feed Rate (mm/min)

DC (mm)

7,950 4,050 1,950 1,350

7,950 4,050 1,950 1,350

7,950 4,050 1,950 1,350

6,250 3,100 1,650 1,000

5,750 2,850 1,400

4,000 2,050

4,850 2,400 1,200

4,000 2,050 1,050

1.0 2.0 4.0 6.0 8.0

120 120 170 130

120 120 170 130

120 120 170 130

70 90

50 70 90

35 50 35 55 55 50 55 50 45 35

35 50 45 40 40 40 40 40 40 30

35 35 30 30 30 30 30 30 30 25

100 140

710 700 520 360 350 260 210 170

930 120 720 120 570 100 460 100

800 560 490 400 280 240 190

700 490 410 350 270 210 170

970 190 770 180 640 170 460 140 390 130 310 100

970 190 770 180 640 170 460 140 390 130 310 100

970 190 770 180 640 170 460 140 390 130 310 100

740 140 630 120 500 120 370 100

10.0 12.0 16.0 20.0 25.0

360 280 220

90 70 55

310 250

90 70

2.5DC

2.0DC 0.01DC

a p

Standard Depth of Cut

a e Below ø3 : 0.02DC , Above ø3 to Below ø8 : 0.05DC, Above ø8 : 0.07DC

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