About Countersinks
Countersinks cut a cone-shaped opening to install screws and rivets flush with a surface or hold workpieces between centers on a lathe. They can also be used for chamfering and deburring.
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High-Speed Steel Drill-Bit Countersink Sets
The countersinks in these sets are for use with most metals in addition to plastic and wood. They attach to a drill bit (sold separately) you can drill and countersink holes in one step. They attach to the drill bit with two set screws and the position can be adjusted for different screw lengths. The 82° countersink angle is compatible with the profile of flat- and oval-head inch screws.
Optional collar (not included) controls the cutting depth of your countersink. It attaches with two set screws.
For technical drawings and 3-D models, click on a part number.
82° Countersink Angle | |||||||
|---|---|---|---|---|---|---|---|
| Number of Pieces | Body Diameters Included | Number of Flutes | Number of Countersinking Ends | For Use On | Container Type | Each | |
Uncoated High-Speed Steel | |||||||
| 14 | One 1/2" body dia. countersink for 1/4" dia. drill bit One 1/2" body dia. countersink for 13/64" dia. drill bit One 1/2" body dia. countersink for 3/16" dia. drill bit One 1/2" body dia. countersink for a 7/32" dia. drill bit One 3/8" body dia. countersink for 1/8" dia. drill bit One 3/8" body dia. countersink for 11/64" dia. drill bit One 3/8" body dia. countersink for 3/16" dia. drill bit One 3/8" body dia. countersink for 5/32" dia. drill bit One 3/8" body dia. countersink for 9/64" dia. drill bit One 5/8" body dia. countersink for 1/4" dia. drill bit One 5/8" body dia. countersink for 3/16" dia. drill bit One 5/8" body dia. countersink for 5/16" dia. drill bit One 5/8" body dia. countersink for a 9/32" dia. drill bit One 7/16" body dia. countersink for a 13/64" dia. drill bit | 4 | 1 | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel, Wood | Wood Stand | 0000000 | 0000000 |
Carbon Steel Drill-Bit Countersink Sets
For use with plastic and wood, the countersinks in these sets attach to a drill bit (sold separately) so you can drill and countersink holes in one step. They attach to the drill bit with two set screws and the position can be adjusted for different screw lengths. The 82° countersink angle is compatible with the profile of flat- and oval-head inch screws.
Optional collar (not included) controls the cutting depth of your countersink. It attaches with two set screws.
For technical drawings and 3-D models, click on a part number.
82° Countersink Angle | |||||||
|---|---|---|---|---|---|---|---|
| Number of Pieces | Body Dia. Included | Number of Flutes | Number of Countersinking Ends | For Use On | Container Type | Each | |
Uncoated Carbon Steel | |||||||
| 14 | One 1/2" body dia. countersink for 1/4" dia. drill bit One 1/2" body dia. countersink for 13/64" dia. drill bit One 1/2" body dia. countersink for 3/16" dia. drill bit One 1/2" body dia. countersink for a 7/32" dia. drill bit One 3/8" body dia. countersink for 1/8" dia. drill bit One 3/8" body dia. countersink for 11/64" dia. drill bit One 3/8" body dia. countersink for 3/16" dia. drill bit One 3/8" body dia. countersink for 5/32" dia. drill bit One 3/8" body dia. countersink for 9/64" dia. drill bit One 5/8" body dia. countersink for 1/4" dia. drill bit One 5/8" body dia. countersink for 3/16" dia. drill bit One 5/8" body dia. countersink for 5/16" dia. drill bit One 5/8" body dia. countersink for a 9/32" dia. drill bit One 7/16" body dia. countersink for a 13/64" dia. drill bit | 4 | 1 | Plastic, Wood | Wood Stand | 0000000 | 0000000 |