About Counterbores
Counterboring—Enlarge the top of an existing hole to create a cylindrical-shaped opening with a flat bottom that acts as a seat for the head of a screw or wood plug.
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Changeable-Pilot Counterbore Sets
Change out the pilot to use the same tool to counterbore multiple diameters. Set includes 5 counterbores and 10 pilots.
| Sizes Included | Number of Pieces | Includes | Shank Type | For Use On | Container Type | Set | |
Uncoated High-Speed Steel | |||||||
|---|---|---|---|---|---|---|---|
| 1/4", 5/16", 3/8", 7/16", 1/2" | 5 | 10 Pilots | Round | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | Wood Case | 0000000 | 0000000 |