Series CT Countersink and Taper Point Drill Combination Setups.
Countersink
Countersink Diameter
Taper Point Diameter
Series CT Setup
C2
1/4
5/64
C2T
C3
3/32
C3T
C4
5/16
7/64
C4T
C44
1/8
C44T
C65
9/64
C65T
C410
5/32
C410T
C411
11/64
C411T
C43
3/16
C43T
C56
3/8
C56T
C57
C57T
C5
C5T
C6
C6T
C7
C7T
C8
C8T
C9
C9T
C913
13/64
C913T
C97
7/32
C97T
C105
7/16
C105T
C1011
C1011T
C103
C103T
C10
C10T
C1014
C1014T
C104
C104T
C122
1/2
C122T
C129
C129T
C125
C125T
C1211
C1211T
C92
C92T
C102
C102T
C12
C12T
C1415
15/64
C1415T
C14
C14T
C145
5/8
C145T
C143
C143T
C167
C167T
C16
C16T
C1617
17/64
C1617T
C169
9/32
C169T
C1619
19/64
C1619T
C18
C18T
C243
3/4
C243T
C247
C247T
C244
C244T
C245
C245T
C20
21/64
C20T
C24
C24T
C284
7/8
C284T
C285
C285T
C286
C286T
C324
1
C324T
C326
C326T