Centerdrill Dimensions

 

 

 

Size Body Diameter (A) Drill Diameter (D) Drill Length (C) OAL (L)
00 1/8" 0.025" 0.030" 1-1/8"
0 1/8" 0.031" 0.038" 1-1/8"
1 1/8" 0.046" 3/64" 1-1/4"
2 3/16" 0.078" 5/64" 1-7/8"
3 1/4" 0.109" 7/64" 2"
4 5/16" 0.125" 1/8" 2-1/8"
5 7/16" 0.187" 3/16" 2-3/4"
6 1/2" 0.218" 7/32" 3"
7 5/8" 0.250" 1/4" 3-1/4"
8 3/4" 0.312" 5/16" 3-1/2"

 

 

 

 

 

 

 

Size Body Diameter (A) Drill Diameter (D) Bell Dia. (E) Drill Length (C) OAL (L)
11 1/8" 0.046" 0.10" 3/64" 1-1/4"
12 3/16" 0.062" 0.15" 1/16" 1-7/8"
13 1/4" 0.093" 0.20" 3/32" 2"
14 5/16" 0.109" 0.25" 7/64" 2-1/8
15 7/16" 0.156" 0.35" 5/32" 2-3/4
16 1/2" 0.187" 0.40" 3/16" 3"
17 5/8" 0.218" 0.50" 7/32" 3-1/4"
18 3/4" 0.250" 0.60" 1/4" 3-1/2"