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 Vibration-Resistant Through-Hole Countersinks for Screws
These countersinks have an angled hole that passes through the center of the tool to reduce vibration and chatter for creating smooth cuts and preventing chips from clogging the tool. They are also known as zero-flute countersinks. An 82° countersink angle is compatible with the profile of flat- and oval-head inch screws; a 90° countersink angle is compatible with the profile of flat- and oval-head metric screws and is also good for deburring.
For technical drawings and 3-D models, click on a part number.
| For Hole Dia. | Body Dia. | Shank Dia. | Overall Lg. | For Use On | Each | |
82° Countersink Angle  | ||||||
|---|---|---|---|---|---|---|
Uncoated High-Speed Steel | ||||||
0 Flute | ||||||
| 5/32" to 13/32" | 7/16" | 1/4" | 1 21/32" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
| 3/16" to 17/32" | 9/16" | 1/4" | 1 7/8" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 5/16" to 25/32" | 13/16" | 1/4" | 2 1/8" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 5/16" to 25/32" | 13/16" | 1/2" | 2 5/8" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 7/16" to 7/8" | 15/16" | 1/2" | 2 19/32" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 9/16" to 1 1/16" | 1 1/8" | 1/2" | 2 29/32" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 5/8" to 1 15/32" | 1 1/2" | 1/2" | 2 7/8" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
| 3/4" to 1 3/4" | 1 3/4" | 5/8" | 3 1/8" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
| 1" to 2" | 2 1/8" | 5/8" | 3 1/2" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
| 1 1/4" to 2 1/2" | 2 5/8" | 3/4" | 3 7/8" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
90° Countersink Angle | ||||||
Uncoated High-Speed Steel | ||||||
0 Flute | ||||||
| 5/32" to 13/32" | 7/16" | 1/4" | 1 21/32" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 3/16" to 17/32" | 9/16" | 1/4" | 1 7/8" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 5/16" to 25/32" | 13/16" | 1/4" | 2 1/8" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 5/16" to 25/32" | 13/16" | 1/2" | 2 5/8" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 9/16" to 1 1/16" | 1 1/8" | 1/2" | 2 29/32" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
High-Speed Steel Vibration-Resistant
Through-Hole Countersinks with Pilot for Screws
The built-in pilot maintains alignment in the hole. Also known as zero-flute countersinks, these have an angled hole that passes through the center of the tool to reduce vibration and chatter, which creates smooth cuts and prevents chips from clogging the countersink. The 82° countersink angle is compatible with the profile of flat- and oval-head inch screws.
For technical drawings and 3-D models, click on a part number.
Pilot | 82° Countersink Angle | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| For Hole Dia. | For Screw Size | Body Dia. | Shank Dia. | Dia. | Lg. | Overall Lg. | For Use On | Each | |
Uncoated High-Speed Steel | |||||||||
0 Flute | |||||||||
| 1/4" to 33/64" | 1/4" | 33/64" | 3/8" | 1/4" | 5/32" | 2" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
| 5/16" to 41/64" | 5/16" | 41/64" | 3/8" | 5/16" | 5/32" | 2 3/16" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 3/8" to 49/64" | 3/8" | 49/64" | 1/2" | 3/8" | 5/32" | 2 1/2" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 7/16" to 53/64" | 7/16" | 53/64" | 1/2" | 7/16" | 7/32" | 2 11/16" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 1/2" to 15/16" | 1/2" | 15/16" | 1/2" | 1/2" | 1/4" | 2 11/16" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
High-Speed Steel Vibration-Resistant Through-Hole
Countersinks with Two Countersinking Ends for Screws
When one end dulls, turn these countersinks around for a sharp cutting edge. An angled hole passes through the center of the countersink to reduce vibration and chatter, which creates smooth cuts and prevents chips from clogging the tool. They are also known as zero-flute countersinks. An 82° countersink angle is compatible with the profile of flat- and oval-head inch screws; a 90° countersink angle is compatible with the profile of flat- and oval-head metric screws and is also good for deburring.
For technical drawings and 3-D models, click on a part number.
Cobalt Steel Vibration-Resistant Through-Hole Countersinks for Screws
These countersinks are cobalt steel for heat and abrasion resistance when cutting hard-to-machine materials. An angled hole passes through the center of these countersinks to reduce vibration and chatter for creating smooth cuts and preventing chips from clogging the tool. They are also known as zero-flute countersinks. An 82° countersink angle is compatible with the profile of flat- and oval-head inch screws; a 90° countersink angle is compatible with the profile of flat- and oval-head metric screws and is also good for deburring.
For technical drawings and 3-D models, click on a part number.
82° Countersink Angle | 90° Countersink Angle | |||||||
|---|---|---|---|---|---|---|---|---|
| For Hole Dia. | Body Dia. | Shank Dia. | Overall Lg. | For Use On | Each | Each | ||
Uncoated Cobalt Steel | ||||||||
0 Flute | ||||||||
| 13/64" to 27/64" | 7/16" | 1/4" | 2 1/32" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 | 00000000 | 000000 |
| 5/16" to 17/32" | 9/16" | 1/4" | 2" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 | 00000000 | 00000 |
| 1/2" to 25/32" | 13/16" | 1/2" | 2 5/8" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 | 00000000 | 00000 |
| 3/4" to 1 3/32" | 1 1/8" | 1/2" | 2 7/8" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 | 00000000 | 00000 |
Cobalt Steel Vibration-Resistant Through-Hole
Countersinks with Two Countersinking Ends for Screws
Turn these countersinks around when one end dulls for a sharp cutting edge. They are made of heat- and abrasion-resistant cobalt steel for excellent performance on hard-to-machine materials. Also known as zero-flute countersinks, they have an angled hole that passes through the center of the countersink to reduce vibration and chatter for creating smooth cuts and preventing chips from clogging the tool. An 82° countersink angle is compatible with the profile of flat- and oval-head inch screws; a 90° countersink angle is compatible with the profile of flat- and oval-head metric screws and is also good for deburring.
For technical drawings and 3-D models, click on a part number.
High-Speed Steel Vibration-Resistant Through-Hole Countersinks for Rivets
To create smooth cuts and prevent chips from clogging the tool, these countersinks have an angled hole that passes through the center of the tool for reduced vibration and chatter. They are also known as zero-flute countersinks. The 100° countersink angle is compatible with the profile of rivets.
For technical drawings and 3-D models, click on a part number.
100° Countersink Angle | ||||||
|---|---|---|---|---|---|---|
| For Hole Dia. | Body Dia. | Shank Dia. | Overall Lg. | For Use On | Each | |
Uncoated High-Speed Steel | ||||||
0 Flute | ||||||
| 5/32" to 13/32" | 7/16" | 1/4" | 1 21/32" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
| 3/16" to 17/32" | 9/16" | 1/4" | 1 7/8" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 5/16" to 25/32" | 13/16" | 1/2" | 2 5/8" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 9/16" to 1 1/16" | 1 1/8" | 1/2" | 2 29/32" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
High-Speed Steel Vibration-Resistant Through-Hole
Countersinks with Two Countersinking Ends for Rivets
Turn the countersink around for a sharp cutting edge when one end dulls. An angled hole passes through the center of the countersink to reduce vibration and chatter for creating smooth cuts and preventing chips from clogging the tool. It is also known as a zero-flute countersink. The 100° countersink angle is compatible with the profile of rivets.
For technical drawings and 3-D models, click on a part number.
100° Countersink Angle | ||||||
|---|---|---|---|---|---|---|
| For Hole Dia. | Body Dia. | Shank Dia. | Overall Lg. | For Use On | Each | |
Uncoated High-Speed Steel | ||||||
0 Flute | ||||||
| 1/16" to 15/64" | 1/4" | 1/4" | 1 7/8" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
High-Speed Steel Vibration-Resistant
Through-Hole Countersinks for Lathe Centers
An angled hole passes through the center of these countersinks to reduce vibration and chatter, creating smooth cuts and preventing chips from clogging the tool. They are also known as zero-flute countersinks. The 60° countersink angle is compatible with the profile of centers on a lathe.
For technical drawings and 3-D models, click on a part number.
60° Countersink Angle | ||||||
|---|---|---|---|---|---|---|
| For Hole Dia. | Body Dia. | Shank Dia. | Overall Lg. | For Use On | Each | |
Uncoated High-Speed Steel | ||||||
0 Flute | ||||||
| 3/16" to 13/32" | 7/16" | 1/4" | 1 25/32" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
| 5/16" to 17/32" | 9/16" | 1/4" | 1 15/16" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 7/16" to 25/32" | 13/16" | 1/4" | 2 3/8" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 7/16" to 25/32" | 13/16" | 1/2" | 2 3/4" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 11/16" to 1 3/32" | 1 1/8" | 1/2" | 2 11/64" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
High-Speed Steel Vibration-Resistant Through-Hole
Countersinks with Two Countersinking Ends for Lathe Centers
When one end dulls, turn the countersink around to use the other end. An angled hole passes through the center of the countersink to reduce vibration and chatter for creating smooth cuts and preventing chips from clogging the tool. It is also known as a zero-flute countersink. The 60° countersink angle is compatible with the profile of centers on a lathe.
For technical drawings and 3-D models, click on a part number.
60° Countersink Angle | ||||||
|---|---|---|---|---|---|---|
| For Hole Dia. | Body Dia. | Shank Dia. | Overall Lg. | For Use On | Each | |
Uncoated High-Speed Steel | ||||||
0 Flute | ||||||
| 1/8" to 15/64" | 1/4" | 1/4" | 1 7/8" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
Cobalt Steel Vibration-Resistant Through-Hole Countersinks
with Two Countersinking Ends for Lathe Centers
Turn the countersink around when one end dulls to use the other end. For cutting hard-to-machine materials, this countersink is heat- and abrasion-resistant cobalt steel. An angled hole passes through the center of the countersink to reduce vibration and chatter, creating smooth cuts and preventing chips from clogging the countersink. It is also known as a zero-flute countersink. The 60° countersink angle is compatible with the profile of centers on a lathe.
For technical drawings and 3-D models, click on a part number.
60° Countersink Angle | ||||||
|---|---|---|---|---|---|---|
| For Hole Dia. | Body Dia. | Shank Dia. | Overall Lg. | For Use On | Each | |
Uncoated Cobalt Steel | ||||||
0 Flute | ||||||
| 3/32" to 15/64" | 1/4" | 1/4" | 1 1/2" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
Cobalt Steel Vibration-Resistant Through-Hole Countersinks for Lathe Centers
These countersinks are cobalt steel for heat and abrasion resistance when cutting hard-to-machine materials. Also known as zero-flute countersinks, they have an angled hole that passes through the center of the countersink to reduce vibration and chatter, which creates smooth cuts and prevents chips from clogging the tool. The 60° countersink angle is compatible with the profile of centers on a lathe.
For technical drawings and 3-D models, click on a part number.
60° Countersink Angle | ||||||
|---|---|---|---|---|---|---|
| For Hole Dia. | Body Dia. | Shank Dia. | Overall Lg. | For Use On | Each | |
Uncoated Cobalt Steel | ||||||
0 Flute | ||||||
| 13/64" to 27/64" | 7/16" | 1/4" | 2 1/32" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 |
| 5/16" to 17/32" | 9/16" | 1/4" | 2" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 |
| 1/2" to 25/32" | 13/16" | 1/2" | 2 5/8" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 |
| 3/4" to 1 3/32" | 1 1/8" | 1/2" | 2 7/8" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 |
Vibration-Resistant Through-Hole Countersink Sets with Pilot for Screws
The built-in pilot maintains alignment in the hole. The countersinks in this set have an angled hole that passes through the center of the tool to reduce vibration and chatter, which creates clean cuts and prevents chips from clogging the tool. They are also called zero-flute countersinks. The 82° countersink angle is compatible with the profile of flat- and oval-head inch screws.
For technical drawings and 3-D models, click on a part number.
82° Countersink Angle | |||||||
|---|---|---|---|---|---|---|---|
| For Hole Dia. | Number of Pieces | Number of Flutes | Shank Type | For Use On | Container Type | Set | |
Uncoated High-Speed Steel | |||||||
| 1/4" to 15/16" | 5 | 0 | Round | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | Wood Stand | 0000000 | 0000000 |
Vibration-Resistant Through-Hole Countersink Sets for Screws
An angled hole passes through the center of the countersinks in these sets to reduce vibration and chatter, which creates clean cuts and prevents chips from clogging the tool. They are also known as zero-flute countersinks. An 82° countersink angle is compatible with the profile of flat- and oval-head inch screws; a 90° countersink angle is compatible with the profile of flat- and oval-head metric screws and is also good for deburring.
For technical drawings and 3-D models, click on a part number.
For Hole Dia. | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1/4" Shank Dia. | 1/2" Shank Dia. | Number of Pieces | Number of Flutes | Number of Countersinking Ends | Shank Type | For Use On | Container Type | Set | |
82° Countersink Angle | |||||||||
Uncoated High-Speed Steel | |||||||||
| 1/16", 5/32", 3/16" | 5/16", 9/16" | 5 | 0 | 1 | Round | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | Wood Stand | 0000000 | 0000000 |
90° Countersink Angle | |||||||||
Uncoated High-Speed Steel | |||||||||
| 1/16", 5/32", 3/16" | 5/16", 9/16" | 5 | 0 | 1 | Round | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | Wood Stand | 0000000 | 000000 |
Vibration-Resistant Through-Hole Countersink Sets for Rivets
The countersinks in this set have an angled hole that passes through the center of the tool to reduce vibration and chatter. This creates clean cuts and prevents chips from clogging the tool. These countersinks are also known as zero-flute countersinks. The 100° countersink angle is compatible with the profile of rivets.
For technical drawings and 3-D models, click on a part number.
For Hole Dia. | 100° Countersink Angle | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1/4" Shank Dia. | 1/2" Shank Dia. | Number of Pieces | Number of Flutes | Number of Countersinking Ends | Shank Type | For Use On | Container Type | Set | |
Uncoated High-Speed Steel | |||||||||
| 1/16", 5/32", 3/16" | 5/16", 9/16" | 5 | 0 | 1 | Round | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | Wood Stand | 0000000 | 0000000 |
Vibration-Resistant Through-Hole Countersink Sets for Lathe Centers
Also known as zero-flute countersinks, the countersinks in this set have an angled hole that passes through the center of the tool to reduce vibration and chatter. This creates clean cuts and prevents chips from clogging the tool. The 60° countersink angle is compatible with the profile of centers on a lathe.
For technical drawings and 3-D models, click on a part number.
For Hole Dia. | 60° Countersink Angle | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| 1/4" Shank Dia. | 1/2" Shank Dia. | Number of Pieces | Number of Flutes | Number of Countersinking Ends | Shank Type | For Use On | Container Type | Set | |
Uncoated High-Speed Steel | |||||||||
| 1/8", 3/16", 5/16" | 7/16", 11/16" | 5 | 0 | 1 | Round | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | Wood Stand | 0000000 | 0000000 |