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About Counterbores
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Create flat-bottomed holes, so your screw heads sit flush, recessed, or slightly raised.
Changeable-Pilot Counterbores
 |
Shown with Pilot (Sold Separately) |
High-Speed Steel
 |
Round Shank |
Shank | Uncoated | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
Body Dia. | Overall Lg. | For Pilot Shank Dia. | Dia. | Type | No. of Flutes | Mfr. | Each | |||
| 1/4" | 3 13/16" | 3/32" | 15/64" | Round | 3 | F&D Tool | 3015A13 | 000000 | ||
| 9/32" | 3 13/16" | 3/32" | 17/64" | Round | 3 | F&D Tool | 3015A14 | 00000 | ||
| 5/16" | 3 13/16" | 3/32" | 19/64" | Round | 3 | F&D Tool | 3015A15 | 00000 | ||
| 11/32" | 3 13/16" | 3/32" | 5/16" | Round | 3 | F&D Tool | 3015A16 | 00000 | ||
| 3/8" | 4 1/16" | 5/32" | 5/16" | Round | 3 | F&D Tool | 3015A17 | 00000 | ||
| 13/32" | 4 1/16" | 5/32" | 3/8" | Round | 3 | F&D Tool | 3015A18 | 00000 | ||
| 7/16" | 4 1/16" | 5/32" | 3/8" | Round | 3 | F&D Tool | 3015A19 | 00000 | ||
| 15/32" | 4 5/16" | 3/16" | 7/16" | Round | 3 | F&D Tool | 3015A21 | 00000 | ||
| 1/2" | 4 5/16" | 3/16" | 7/16" | Round | 3 | F&D Tool | 3015A22 | 00000 | ||
| 17/32" | 4 5/16" | 3/16" | 1/2" | Round | 3 | F&D Tool | 3015A23 | 00000 | ||
| 9/16" | 4 5/16" | 3/16" | 1/2" | Round | 3 | F&D Tool | 3015A24 | 00000 | ||
| 19/32" | 5 1/8" | 3/16" | 1/2" | Round | 3 | F&D Tool | 3015A25 | 00000 | ||
| 5/8" | 5 1/8" | 3/16" | 1/2" | Round | 3 | F&D Tool | 3015A26 | 00000 | ||
| 21/32" | 5 1/8" | 3/16" | 1/2" | Round | 3 | F&D Tool | 3015A27 | 00000 | ||
| 11/16" | 5 1/8" | 3/16" | 1/2" | Round | 3 | F&D Tool | 3015A28 | 00000 | ||
| 23/32" | 5 3/8" | 1/4" | 1/2" | Round | 3 | F&D Tool | 3015A29 | 00000 | ||
| 3/4" | 5 3/8" | 1/4" | 1/2" | Round | 3 | F&D Tool | 3015A31 | 00000 | ||
| 25/32" | 5 1/8" | 1/4" | 5/8" | Round | 3 | F&D Tool | 3015A32 | 00000 | ||
| 13/16" | 5 1/8" | 1/4" | 5/8" | Round | 3 | F&D Tool | 3015A33 | 000000 | ||
| 7/8" | 5 3/8" | 1/4" | 3/4" | Round | 3 | F&D Tool | 3015A34 | 000000 | ||
| 15/16" | 6 1/8" | 1/4" | 3/4" | Round | 3 | F&D Tool | 3015A43 | 000000 | ||
| 1" | 6 3/8" | 5/16" | 3/4" | Round | 3 | F&D Tool | 3015A36 | 000000 | ||
| 1 1/8" | 6 3/8" | 5/16" | 1" | Round | 3 | F&D Tool | 3015A38 | 000000 | ||
 |
Pilot Head Dia. | Pilot Lg. | Each | |||
|---|---|---|---|---|---|
Uncoated Carbon Steel | |||||
3/32" Diameter Pilot Shank | |||||
| 3/32" | 3/32" | 3103A1 | 00000 | ||
| 1/8" | 1/8" | 3103A11 | 0000 | ||
| 5/32" | 5/32" | 3103A12 | 0000 | ||
| 3/16" | 3/16" | 3103A13 | 0000 | ||
| 7/32" | 7/32" | 3103A14 | 0000 | ||
| 1/4" | 1/4" | 3103A15 | 0000 | ||
5/32" Diameter Pilot Shank | |||||
| 3/16" | 3/16" | 3103A23 | 0000 | ||
| 7/32" | 7/32" | 3103A24 | 00000 | ||
| 1/4" | 1/4" | 3103A25 | 0000 | ||
| 9/32" | 9/32" | 3103A61 | 00000 | ||
| 5/16" | 5/16" | 3103A26 | 00000 | ||
| 3/8" | 3/8" | 3103A27 | 00000 | ||
3/16" Diameter Pilot Shank | |||||
| 3/16" | 3/16" | 3103A64 | 0000 | ||
| 1/4" | 1/4" | 3103A28 | 0000 | ||
| 9/32" | 9/32" | 3103A62 | 00000 | ||
| 5/16" | 5/16" | 3103A29 | 00000 | ||
| 11/32" | 11/32" | 3103A63 | 00000 | ||
| 3/8" | 3/8" | 3103A3 | 00000 | ||
| 13/32" | 13/32" | 3103A65 | 00000 | ||
| 7/16" | 7/16" | 3103A31 | 00000 | ||
| 15/32" | 15/32" | 3103A66 | 00000 | ||
| 1/2" | 1/2" | 3103A32 | 00000 | ||
| 17/32" | 17/32" | 3103A48 | 00000 | ||
| 9/16" | 9/16" | 3103A33 | 00000 | ||
| 5/8" | 5/8" | 3103A34 | 00000 | ||
1/4" Diameter Pilot Shank | |||||
| 5/16" | 5/16" | 3103A35 | 0000 | ||
| 3/8" | 3/8" | 3103A36 | 00000 | ||
| 7/16" | 7/16" | 3103A37 | 00000 | ||
| 1/2" | 1/2" | 3103A38 | 00000 | ||
| 9/16" | 9/16" | 3103A39 | 00000 | ||
| 5/8" | 5/8" | 3103A4 | 00000 | ||
| 11/16" | 11/16" | 3103A41 | 00000 | ||
| 3/4" | 3/4" | 3103A42 | 00000 | ||
| 13/16" | 13/16" | 3103A43 | 00000 | ||
5/16" Diameter Pilot Shank | |||||
| 3/8" | 3/8" | 3103A45 | 00000 | ||
| 7/16" | 7/16" | 3103A46 | 00000 | ||
| 1/2" | 1/2" | 3103A47 | 00000 | ||
| 5/8" | 5/8" | 3103A49 | 00000 | ||
| 11/16" | 11/16" | 3103A5 | 00000 | ||
| 3/4" | 3/4" | 3103A51 | 00000 | ||
| 1" | 1" | 3103A55 | 00000 | ||
Changeable-Pilot Counterbore Sets
 |
A handful of counterbores and changeable pilots give you the versatility of dozens of normal counterbores. For each hole, mix and match counterbores and pilots to correspond with your screw-head and screw-shank diameter.
High-Speed Steel—Durable and wear resistant, these counterbores make accurate cuts in most materials without chipping or cracking.
Body Dia. | Shank Type | No. of Pieces | Includes | Container Type | Mfr. | Each | |||
|---|---|---|---|---|---|---|---|---|---|
Uncoated High-Speed Steel | |||||||||
| 1/4", 5/16", 3/8", 7/16", 1/2" | Round | 5 | 10 Pilots | Wood Case | F&D Tool | 2817A71 | 0000000 | ||
