Diameter
Branch Diam
Hole Size
Length
Stand Off
D
A
AA
L
B
inches
mm
1
-
25
1 1/2
38
2
< D
A+4.85
AA+12
6
51
A+123
AA+305
152
2 1/2
"
64
3
76
4
102
5
127
7
178
8
203
9
229
10
254
12
305
14
356
16
406
18
457
20
508
22
559
24
610
26
660
28
711
30
762
32
813
34
864
36
914
42
1067
48
1219
54
1372
60
1524
66
1676
72
1829
78
1981
84
2134
92
2337