200 round hole series

(d/min.)

D

c

B

Cr

Cor

0.625

203KR2

4

1.5748

0.472

0.551

12800

6650

0.077

15.88

40

12

14

0.64

203KRR2

1

1.5748

0.472

0.72

12800

6650

0.085

16.26

40

12

18.29

0.515

203KRR5

1

1.5748

0.472

0.72

12800

6650

0.096

13.08

40

12

18.29

0.64

203KRR6

1

1.8504

0.472

0.72

12800

6650

0.13

16.26

47

12

18.29

0.669

203KRR7

1

1.5748

0.472

0.654

12800

6650

0.079

17

40

12

16.61

0.7505

204KR2

4

1.7805

0.61

0.61

12800

6650

0.107

19.063

45.23

15.49

15.49

0.7874

204KRR3

1

1.8504

0.551

0.699

12800

6650

0.121

20

47

14

17.76

0.63

204KRD4

2

1.8504

0.551

0.689

12800

6650

0.135

16

47

14

17.5

0.63

204KRR14

1

1.8504

0.591

0.72

12800

6650

0.142

16

47

15

18.29

0.75

205KR3

5

2.0472

0.6992

0.6402

14000

7850

0.161

19.05

52

17.76

16.26

1.0005

205KR4

3

2.0472

0.591

1

14000

7850

0.148

25.41

52

15

25.4

1.181

206KR7

3

2.441

0.63

0.945

19450

11250

0.26

30

62

16

24

1.181

206KRR8

1

2.441

0.63

0.945

19450

11250

0.26

30

62

16

24

1.2598

206KRR18

1

2.441

0.63

0.945

19450

11250

0.219

32

62

16

24

1.378

207KRR

1

2.8346

0.669

0.984

25700

15200

0.35

35

72

17

28

1.5748

208KRR2

1

3.1496

0.827

1.063

29500

18100

0.45

40

80

21

27

1.9685

210KRR

1

3.5433

0.7874

1.181

35000

23200

0.524

50

90

20

30

2.7559

214KRR

1

4.9212

1.1024

1.6929

62100

44800

1.546

70

125

28

43