Description
39 Ps/Set HSS Interchangeable Pilot Counterbore Sets In Fitted Wooden Box, #500S-A000
- Complete with pilots in fitted case.
- Each set includes:13 counterbores-26 pilots
- Counterbores: 1/4" to 1" by 16ths
- Pilots:
1/8", 5/32", 3/16" and 1/4" with 3/32" shanks
3/16", 7/32", 1/4", 9/32" and 5/16" with 5/32" shanks,
1/4", 5/16", 3/8", 7/16" and 1/2" with 3/16" shanks,
5/16", 3/8", 7/16", 1/2", 9/16" and 5/8" with 1/4" shank
3/8", 7/16", 1/2", 9/16", 5/8", and 3/4" with 5/16" shank - Soild wood excellent packing
- Straight shank
The 13 pcs interchange counterbore and their correspondent pilot chart
Counterbore Size |
Pilot Hole Size |
Range of Pilot Sizes |
No. of Flute |
Shank for Counterbore |
Overall Length |
1/4" |
3/32" |
1/8"-3/16" |
3 |
15/64" |
3-13/16" |
5/16" |
3/32" |
1/8"-1/4" |
3 |
19/64" |
3-13/16" |
3/8" |
5/32" |
3/16"-5/16" |
3 |
5/16" |
4-1/16" |
7/16" |
5/32" |
3/16"-3/8" |
3 |
3/8" |
4-1/16" |
1/2" |
3/16" |
1/4"-7/16" |
3 |
7/16" |
4-5/16" |
9/16" |
3/16" |
1/4"-1/2" |
3 |
7/16" |
4-5/16" |
5/8" |
3/16" |
1/4"-9/16" |
3 |
1/2" |
5-1/8" |
11/16" |
3/16" |
1/4"-5/8" |
3 |
1/2" |
5-1/8" |
3/4" |
1/4" |
5/16"-11/16" |
3 |
1/2" |
5-3/8" |
13/16" |
1/4" |
5/16"-3/4" |
3 |
5/8" |
5-3/8" |
7/8" |
1/4" |
5/16"-13/16" |
3 |
3/4" |
5-3/8" |
15/16" |
1/4" |
5/16"-7/8" |
3 |
3/4" |
6-1/8" |
1" |
5/16" |
3/8"-15/16" |
3 |
3/4" |
6-3/8" |