Detailed Product Description

Interchangeable pilot counterbore

American standard or DIN standard.

Pilots of different diameters can be used with each counterbore. Used in spot facing and counterboring operations with same pilot.

Counterbore Pilot hole size Range of pilot size
3/16 3/32 1/8 - 5/32
7/32 3/32 1/8 - 3/16
15/64 3/32 1/8 - 3/16
1/4 3/32 1/8 - 3/16
17/64 3/32 1/8 - 3/16
9/32 3/32 1/8 - 7/32
19/64 3/32 1/8 - 7/32
5/16 3/32 1/8 - 1/4
11/32 3/32 1/8 - 9/32
3/8 5/32 3/16 - 5/16
25/64 5/32 3/16 - 5/16
13/32 5/32 3/16 - 11/32
7/16 5/32 3/16 - 3/8
15/32 3/16 1/4 - 13/32
31/64 3/16 1/4 - 7/16
1/2 3/16 1/4 - 7/16
17/32 3/16 1/4 - 15/32
9/16 3/16 1/4 - 1/2
37/64 3/16 1/4 - 1/2
19/32 3/16 1/4 - 17/32
5/8 3/16 1/4 - 9/16
41/64 3/16 1/4 - 9/16
21/32 3/16 1/4 - 19/32
11/16 3/16 1/4 - 5/8
23/32 1/4 5/16 - 21/32
3/4 1/4 5/16 - 11/16
25/32 1/4 5/16 - 23/32
13/16 1/4 5/16 - 3/4
27/32 1/4 5/16 - 25/32
7/8 1/4 5/16 - 13/16
29/32 1/4 5/16 - 27/32
15/16 1/4 5/16 - 7/8
31/32 5/16 3/8 - 15/16
1 5/16 3/8 - 15/16
1-1/16 5/16 3/8 - 1
1-1/8 5/16 3/8 - 1-1/16
1-3/16 5/16 3/8 - 1-1/8
1-1/4 3/8 7/16 - 1-3/16
1-5/16 3/8 7/16 - 1-1/4
1-3/8 3/8 7/16 - 1-5/16
1-7/16 3/8 7/16 - 1-3/8
1-1/2 3/8 7/16 - 1-7/16
1-5/8 7/16 1/2 - 1-9/16
1-11/16 7/16 1/2 - 1-5/8
1-3/4 7/16 1/2 - 1-11/16
1-13/16 7/16 1/2 - 1-3/4
1-7/8 7/16 1/2 - 1-13/16
2 1/2 9/16 - 1-15/16
2-1/8 1/2 9/16 - 2-1/16
2-1/4 1/2 9/16 - 2-3/16
2-3/8 1/2 9/16 - 2-5/16
2-1/2 1/2 9/16 - 2-7/16
2-5/8 1/2 9/16 - 2-9/16
2-3/4 1/2 9/16 - 2-11/16
2-7/8 1/2 9/16 - 2-13/16
3 1/2 9/16 - 2-15/16