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12

Fractional

|

Speed & Feed Recommendations

Series

Z5, Z5CR

Fractional

Hardness

(Brinell)

Ap

Ae

Ae

Vc

(SFM)

Diameter (D

1

)

(inch)

Ae x D

1

Ap x D

1

1/8

1/4

3/8

1/2

5/8

3/4

1

P

CARBON STEELS

1018, 1040, 1080, 1090,

10L50, 1140, 1212, 12L15,

1525, 1536

≤ 275

Profile

≤ 0.5

≤ 1.5

555

RPM 16961

8480

5654

4240

3392

2827

2120

(444-666)

Fz

0.0005

0.0012

0.0023

0.0031

0.0034

0.0037

0.0043

Feed (IPM)

39.9

50.9

65.0

65.7

57.7

52.3

45.6

Slot

1

≤ 1

440

RPM 13446

6723

4482

3362

2689

2241

1681

(352-528)

Fz

0.0005

0.0012

0.0023

0.0031

0.0034

0.0037

0.0043

Feed (IPM)

31.6

40.3

51.5

52.1

45.7

41.5

36.1

P

ALLOY STEELS

4140, 4150, 4320, 5120,

5150, 8630, 86L20, 50100

≤ 375

Profile

≤ 0.5

≤ 1.5

315

RPM 9626

4813

3209

2407

1925

1604

1203

(252-378)

Fz

0.0004

0.0009

0.0017

0.0023

0.0026

0.0028

0.0032

Feed (IPM)

16.8

21.7

27.3

27.7

25.0

22.5

19.3

Slot

1

≤ 1

250

RPM 7640

3820

2547

1910

1528

1273

955

(200-300)

Fz

0.0004

0.0009

0.0017

0.0023

0.0026

0.0028

0.0032

Feed (IPM)

13.4

17.2

21.6

22.0

19.9

17.8

15.3

P

TOOL STEELS

A2, D2, H13, L2, M2,

P20, S7, T15, W2

≤ 375

Profile

≤ 0.5

≤ 1.5

185

RPM 5654

2827

1885

1413

1131

942

707

(148-222)

Fz

0.0003

0.0007

0.0014

0.0018

0.0020

0.0022

0.0025

Feed (IPM)

7.6

9.9

13.2

12.7

11.3

10.4

8.8

Slot

1

≤ 1

145

RPM 4431

2216

1477

1108

886

739

554

(116-174)

Fz

0.0003

0.0007

0.0014

0.0018

0.0020

0.0022

0.0025

Feed (IPM)

6.0

7.8

10.3

10.0

8.9

8.1

6.9

K

CAST IRONS

(LOW & MEDIUM

ALLOY)

Gray, Malleable, Ductile

≤ 220

Profile

≤ 0.5

≤ 1.5

445

RPM 13599

6800

4533

3400

2720

2267

1700

(356-534)

Fz

0.0004

0.0011

0.0021

0.0028

0.0031

0.0034

0.0039

Feed (IPM)

28.6

37.4

47.6

47.6

42.2

38.5

33.1

Slot

1

≤ 1

355

RPM 10849

5424

3616

2712

2170

1808

1356

(284-426)

Fz

0.0004

0.0011

0.0021

0.0028

0.0031

0.0034

0.0039

Feed (IPM)

22.8

29.8

38.0

38.0

33.6

30.7

26.4

K

CAST IRONS

(HIGH ALLOY)

Gray, Malleable, Ductile

> 220

≤ 260

Profile

≤ 0.5

≤ 1.5

340

RPM 10390

5195

3463

2598

2078

1732

1299

(272-408)

Fz

0.0003

0.0008

0.0016

0.0021

0.0023

0.0025

0.0029

Feed (IPM)

15.6

21.8

27.7

27.3

23.9

21.6

18.8

Slot

1

≤ 1

270

RPM 8251

4126

2750

2063

1650

1375

1031

(216-324)

Fz

0.0003

0.0008

0.0016

0.0021

0.0023

0.0025

0.0029

Feed (IPM)

12.4

17.3

22.0

21.7

19.0

17.2

15.0

M

STAINLESS STEELS

(FREE MACHINING)

303, 416, 420F, 430F, 440F

≤ 275

Profile

≤ 0.5

≤ 1.5

490

RPM 14974

7487

4991

3744

2995

2496

1872

(392-588)

Fz

0.0004

0.0009

0.0017

0.0023

0.0026

0.0028

0.0032

Feed (IPM)

26.2

33.7

42.4

43.1

38.9

34.9

29.9

Slot

1

≤ 1

390

RPM 11918

5959

3973

2980

2384

1986

1490

(312-468)

Fz

0.0004

0.0009

0.0017

0.0023

0.0026

0.0028

0.0032

Feed (IPM)

20.9

26.8

33.8

34.3

31.0

27.8

23.8

M

STAINLESS STEELS

(DIFFICULT)

304, 304L, 316, 316L

≤ 275

Profile

≤ 0.5

≤ 1.5

340

RPM 10390

5195

3463

2598

2078

1732

1299

(272-408)

Fz

0.0003

0.0007

0.0014

0.0018

0.0020

0.0022

0.0025

Feed (IPM)

14.0

18.2

24.2

23.4

20.8

19.0

16.2

Slot

1

≤ 1

270

RPM 8251

4126

2750

2063

1650

1375

1031

(216-324)

Fz

0.0003

0.0007

0.0014

0.0018

0.0020

0.0022

0.0025

Feed (IPM)

11.1

14.4

19.3

18.6

16.5

15.1

12.9

M

STAINLESS STEELS

(PH)

13-8 PH, 15-5PH,

17-4 PH, CUSTOM 450

≤ 325

Profile

≤ 0.5

≤ 1.5

310

RPM 9474

4737

3158

2368

1895

1579

1184

(248-372)

Fz

0.0003

0.0007

0.0014

0.0018

0.0020

0.0022

0.0025

Feed (IPM)

12.8

16.6

22.1

21.3

18.9

17.4

14.8

Slot

1

≤ 1

250

RPM 7640

3820

2547

1910

1528

1273

955

(200-300)

Fz

0.0003

0.0007

0.0014

0.0018

0.0020

0.0022

0.0025

Feed (IPM)

10.3

13.4

17.8

17.2

15.3

14.0

11.9

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