Code

Blade Diameter

D

Blade length

l

Effective edge length

 L1

Neck diameter (U/C)

General

L

1

0.4

0.6

2

0.38

45

2

0.4

0.6

4

0.38

45

3

0.5

0.7

2

0.48

45

4

0.5

0.7

4

0.48

45

5

0.5

0.7

6

0.48

45

6

0.6

0.9

4

0.57

45

7

0.6

0.9

6

0.57

45

8

0.6

0.9

8

0.57

45

9

0.8

1.2

6

0.76

45

10

0.8

1.2

8

0.76

45