Part No.

Size of Whorl

External Diameter

mm

mm

mm

mm

mm

10.0
13.0
15.8
18.5
21.2
28.5
34.5
42.5
54.5

7
9
11
13.5
16
21
29
36
48

12.5
15.2
18.6
20.4
22.5
28.3
37.0
47.0
59.3

8.5
12.0
15.5
13.5
18.0
24.0
32.0
36.5
48.5

17.0
20.0
23.0
26.0
29.5
37.0
44.0
52.0
64.0

10
10
10
11
12
12
12
12
14

32.0
34.0
37.0
44.0
47.0
55.0
63.0
70.0
83.0

16.0
20.0
23.0
27.0
27.0
34.0
43.0
52.0
64.0