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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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About Drill Bits
More
Drill Bit Decimal Size Equivalents
More
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.
More
Carbide Hole-Starting Drill Bits
Harder, stronger, and more wear resistant than cobalt steel, solid-carbide bits maintain their sharp edges longer. They require rigid toolholding to prevent breakage and should not be used in hand-held drilling applications. The short flute and length keep these bits straight for accurate placement when starting holes that will be drilled deeper with a longer bit. Also known as spotting drill bits.
Bits with a 90° point angle are for centering and chamfering holes that will be followed by a smaller drill bit size.
Bits with a 120° point angle are for starting a hole that will be followed by a drill bit with a point angle from 90° to 118°.
Bits with a 140° point angle are for starting a hole that will be followed by a drill bit with a point angle from 118° to 135°.
For technical drawings and 3-D models, click on a part number.
Shank | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | |
90° Point Angle | |||||||||
Inch | |||||||||
Uncoated Carbide | |||||||||
| 1/4" | 0.25" | 2 1/2" | 1/4" | Round | 1/4" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
| 3/8" | 0.375" | 2 1/2" | 0.38" | Round | 3/8" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
| 1/2" | 0.5" | 3" | 1/2" | Round | 1/2" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
| 5/8" | 0.625" | 3 1/2" | 0.63" | Round | 5/8" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
120° Point Angle | |||||||||
Inch | |||||||||
Uncoated Carbide | |||||||||
| 1/4" | 0.25" | 2 1/2" | 1/4" | Round | 1/4" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
| 3/8" | 0.375" | 2 1/2" | 0.38" | Round | 3/8" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
| 1/2" | 0.5" | 3" | 1/2" | Round | 1/2" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
| 5/8" | 0.625" | 3 1/2" | 0.63" | Round | 5/8" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
140° Point Angle | |||||||||
Inch | |||||||||
Uncoated Carbide | |||||||||
| 1/4" | 0.25" | 2 1/2" | 1/4" | Round | 1/4" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
| 3/8" | 0.375" | 2 1/2" | 0.38" | Round | 3/8" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
| 1/2" | 0.5" | 3" | 1/2" | Round | 1/2" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
| 5/8" | 0.625" | 3 1/2" | 0.63" | Round | 5/8" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
Cobalt Steel Hole-Starting Drill Bits
The short flute and length keep these bits straight for accurate placement when starting holes that will be drilled deeper with a longer bit. Also known as spotting drill bits. Cobalt steel bits are heat resistant and maintain their sharp edges when drilling hard material. They are for use in both hand-held drilling and machine-tool applications.
Bits with a 90° point angle are for centering and chamfering holes that will be followed by a smaller drill bit size.
Bits with a 120° point angle are for starting a hole that will be followed by a drill bit with a point angle from 90° to 118°.
For technical drawings and 3-D models, click on a part number.
Shank | 90° Point Angle | 120° Point Angle | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | Each | ||
Inch | |||||||||||
Uncoated Cobalt Steel | |||||||||||
| 1/4" | 0.25" | 2 5/8" | 0.89" | Round | 1/4" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 00000000 | 000000 | 00000000 | 000000 |
| 3/8" | 0.375" | 3 1/2" | 1" | Round | 3/8" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 00000000 | 00000 | 00000000 | 00000 |
| 1/2" | 0.5" | 4" | 1.38" | Round | 1/2" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 00000000 | 00000 | 00000000 | 00000 |
| 5/8" | 0.625" | 4 1/2" | 1.38" | Round | 5/8" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 00000000 | 00000 | 00000000 | 00000 |
| 3/4" | 0.75" | 5 1/8" | 1.63" | Round | 3/4" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 00000000 | 00000 | 00000000 | 00000 |
Metric | |||||||||||
Uncoated Cobalt Steel | |||||||||||
| 4.0 mm | 0.1575" | 52mm | 12.7mm | Round | 4mm | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 00000000 | 00000 | 00000000 | 00000 |
| 5.0 mm | 0.1968" | 60mm | 15mm | Round | 5mm | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 00000000 | 00000 | 00000000 | 00000 |
High-Speed Steel Drill-Point Countersinks with Two Countersinking Ends for Screws
When one end of the countersink dulls, turn the tool around for a sharp edge. These countersinks have a small drill point on the tip for drilling and countersinking holes with the same tool. The drill point creates a small pilot hole at the bottom of the countersunk hole to facilitate drilling. 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.
Dia. | |||||||
|---|---|---|---|---|---|---|---|
| Trade Size | For Drill Bit Size | Body | Shank | Overall Lg. | For Use On | Each | |
82° Countersink Angle | |||||||
Uncoated High-Speed Steel | |||||||
| 00 | 0.025" | 1/8" | 1/8" | 1 1/4" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 000000 |
| 0 | 1/32" | 1/8" | 1/8" | 1 1/4" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 00000 |
| 1 | 3/64" | 1/8" | 1/8" | 1 1/4" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 0000 |
| 1 | 3/64" | 1/8" | 1/8" | 3" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 1 | 3/64" | 1/8" | 1/8" | 4" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 1 | 3/64" | 1/8" | 1/8" | 5" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 1 | 3/64" | 1/8" | 1/8" | 6" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 2 | 5/64" | 3/16" | 3/16" | 1 7/8" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 0000 |
| 2 | 5/64" | 3/16" | 3/16" | 3" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 2 | 5/64" | 3/16" | 3/16" | 4" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 2 | 5/64" | 3/16" | 3/16" | 5" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 2 | 5/64" | 3/16" | 3/16" | 6" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 3 | 7/64" | 1/4" | 1/4" | 2" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 0000 |
| 3 | 7/64" | 1/4" | 1/4" | 3" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 3 | 7/64" | 1/4" | 1/4" | 4" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 3 | 7/64" | 1/4" | 1/4" | 5" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 3 | 7/64" | 1/4" | 1/4" | 6" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 4 | 1/8" | 5/16" | 5/16" | 2 1/8" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 0000 |
| 4 | 1/8" | 5/16" | 5/16" | 3" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 4 | 1/8" | 5/16" | 5/16" | 4" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 4 | 1/8" | 5/16" | 5/16" | 5" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 4 | 1/8" | 5/16" | 5/16" | 6" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 4 1/2 | 9/64" | 3/8" | 3/8" | 2 1/2" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 00000 |
| 4 1/2 | 9/64" | 3/8" | 3/8" | 4" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 4 1/2 | 9/64" | 3/8" | 3/8" | 5" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 4 1/2 | 9/64" | 3/8" | 3/8" | 6" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 5 | 3/16" | 7/16" | 7/16" | 2 3/4" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 00000 |
| 5 | 3/16" | 7/16" | 7/16" | 4" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 5 | 3/16" | 7/16" | 7/16" | 5" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 5 | 3/16" | 7/16" | 7/16" | 6" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 6 | 7/32" | 1/2" | 1/2" | 3" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 00000 |
| 6 | 7/32" | 1/2" | 1/2" | 4" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 6 | 7/32" | 1/2" | 1/2" | 5" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 6 | 7/32" | 1/2" | 1/2" | 6" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 7 | 1/4" | 5/8" | 5/8" | 3 1/4" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 00000 |
| 7 | 1/4" | 5/8" | 5/8" | 6" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
| 8 | 5/16" | 3/4" | 3/4" | 3 1/2" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 00000 |
| 8 | 5/16" | 3/4" | 3/4" | 6" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
| 9 | 11/32" | 7/8" | 7/8" | 3 5/8" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 000000 |
| 10 | 3/8" | 1" | 1" | 3 3/4" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 000000 |
90° Countersink Angle | |||||||
Uncoated High-Speed Steel | |||||||
| 00000 | 0.010" | 1/8" | 1/8" | 1 1/4" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 00000 |
| 0000 | 0.015" | 1/8" | 1/8" | 1 1/4" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 00000 |
| 000 | 0.020" | 1/8" | 1/8" | 1 1/4" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 00000 |
| 00 | 0.025" | 1/8" | 1/8" | 1 1/4" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 00000 |
| 0 | 1/32" | 1/8" | 1/8" | 1 1/4" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 00000 |
| 1 | 3/64" | 1/8" | 1/8" | 1 1/4" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 0000 |
| 1 | 3/64" | 1/8" | 1/8" | 3" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 1 | 3/64" | 1/8" | 1/8" | 4" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 1 | 3/64" | 1/8" | 1/8" | 5" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 1 | 3/64" | 1/8" | 1/8" | 6" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 2 | 5/64" | 3/16" | 3/16" | 1 7/8" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 0000 |
| 2 | 5/64" | 3/16" | 3/16" | 3" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 2 | 5/64" | 3/16" | 3/16" | 4" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 2 | 5/64" | 3/16" | 3/16" | 5" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 2 | 5/64" | 3/16" | 3/16" | 6" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 3 | 7/64" | 1/4" | 1/4" | 2" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 0000 |
| 3 | 7/64" | 1/4" | 1/4" | 3" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 3 | 7/64" | 1/4" | 1/4" | 4" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 3 | 7/64" | 1/4" | 1/4" | 5" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 3 | 7/64" | 1/4" | 1/4" | 6" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 4 | 1/8" | 5/16" | 5/16" | 2 1/8" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 0000 |
| 4 | 1/8" | 5/16" | 5/16" | 3" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 4 | 1/8" | 5/16" | 5/16" | 4" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 4 | 1/8" | 5/16" | 5/16" | 5" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 4 | 1/8" | 5/16" | 5/16" | 6" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 4 1/2 | 9/64" | 3/8" | 3/8" | 2 1/2" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 4 1/2 | 9/64" | 3/8" | 3/8" | 4" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 4 1/2 | 9/64" | 3/8" | 3/8" | 5" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 4 1/2 | 9/64" | 3/8" | 3/8" | 6" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 5 | 3/16" | 7/16" | 7/16" | 2 3/4" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 5 | 3/16" | 7/16" | 7/16" | 4" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 5 | 3/16" | 7/16" | 7/16" | 5" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 5 | 3/16" | 7/16" | 7/16" | 6" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 6 | 7/32" | 1/2" | 1/2" | 3" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 6 | 7/32" | 1/2" | 1/2" | 4" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 6 | 7/32" | 1/2" | 1/2" | 5" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 6 | 7/32" | 1/2" | 1/2" | 6" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 7 | 1/4" | 5/8" | 5/8" | 3 1/4" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 7 | 1/4" | 5/8" | 5/8" | 6" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
| 8 | 5/16" | 3/4" | 3/4" | 3 1/2" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
| 8 | 5/16" | 3/4" | 3/4" | 6" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
| 9 | 11/32" | 7/8" | 7/8" | 3 5/8" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 000000 |
| 10 | 3/8" | 1" | 1" | 3 3/4" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 000000 |
Carbide Drill-Point Countersinks with Two Countersinking Ends for Screws
For excellent performance on hard and abrasive materials, these carbide countersinks are harder, stronger, and more wear resistant than cobalt steel and high-speed steel countersinks. They require rigid tool holding to prevent breakage and are not for use with hand-held tools. All have a small drill point on the tip for drilling and countersinking holes with the same tool. The drill point creates a small pilot hole at the bottom of the countersunk hole to facilitate drilling. 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. When one end of the countersink dulls, turn it around for a sharp cutting edge.
TiCN (titanium carbonitride) coated countersinks last longer than uncoated countersinks and are best for general purpose cuts as well as for use on aluminum.
TiAlN (titanium aluminum nitride) coated countersinks are the best choice for materials up to a Rockwell hardness of C50. They are not for use on aluminum.
AlTiN (aluminum titanium nitride) coated countersinks are for high-speed machining on materials with a Rockwell hardness up to C70. They are not for use on aluminum.
For technical drawings and 3-D models, click on a part number.
Dia. | 82° Countersink Angle | 90° Countersink Angle | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Trade Size | For Drill Bit Size | Body | Shank | Overall Lg. | For Use On | Each | Each | ||
Uncoated Carbide | |||||||||
2 Flute | |||||||||
| 00 | 0.025" | 1/8" | 1/8" | 1 1/2" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 000000 | 0000000 | 000000 |
| 0 | 1/32" | 1/8" | 1/8" | 1 1/2" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 00000 | 0000000 | 00000 |
| 1 | 3/64" | 1/8" | 1/8" | 1 1/2" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 00000 | 0000000 | 00000 |
| 2 | 5/64" | 3/16" | 3/16" | 2" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 00000 | 0000000 | 00000 |
| 3 | 7/64" | 1/4" | 1/4" | 2" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 00000 | 0000000 | 00000 |
| 4 | 1/8" | 5/16" | 5/16" | 2 1/2" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 00000 | 0000000 | 00000 |
| 5 | 3/16" | 7/16" | 7/16" | 2 3/4" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 00000 | 0000000 | 00000 |
| 6 | 7/32" | 1/2" | 1/2" | 3" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 00000 | 0000000 | 00000 |
| 7 | 1/4" | 5/8" | 5/8" | 3 1/2" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 000000 | 0000000 | 000000 |
| 8 | 5/16" | 3/4" | 3/4" | 4" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 0000000 | 000000 | 0000000 | 000000 |
Titanium Carbonitride (TiCN) Coated Carbide | |||||||||
2 Flute | |||||||||
| 00 | 0.025" | 1/8" | 1/8" | 1 1/2" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 | 00000000 | 00000 |
| 0 | 1/32" | 1/8" | 1/8" | 1 1/2" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 | 00000000 | 00000 |
| 1 | 3/64" | 1/8" | 1/8" | 1 1/2" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 | 00000000 | 00000 |
| 2 | 5/64" | 3/16" | 3/16" | 2" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 | 00000000 | 00000 |
| 3 | 7/64" | 1/4" | 1/4" | 2" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 | 00000000 | 00000 |
| 4 | 1/8" | 5/16" | 5/16" | 2 1/2" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 | 00000000 | 00000 |
| 5 | 3/16" | 7/16" | 7/16" | 2 3/4" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 | 00000000 | 00000 |
| 6 | 7/32" | 1/2" | 1/2" | 3" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 | 00000000 | 000000 |
| 7 | 1/4" | 5/8" | 5/8" | 3 1/2" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 | 00000000 | 000000 |
| 8 | 5/16" | 3/4" | 3/4" | 4" | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 | 00000000 | 000000 |
Titanium Aluminum Nitride (TiAlN) Coated Carbide | |||||||||
2 Flute | |||||||||
| 00 | 0.025" | 1/8" | 1/8" | 1 1/2" | Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 | 00000000 | 00000 |
| 0 | 1/32" | 1/8" | 1/8" | 1 1/2" | Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 | 00000000 | 00000 |
| 1 | 3/64" | 1/8" | 1/8" | 1 1/2" | Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 | 00000000 | 00000 |
| 2 | 5/64" | 3/16" | 3/16" | 2" | Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 | 00000000 | 00000 |
| 3 | 7/64" | 1/4" | 1/4" | 2" | Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 | 00000000 | 00000 |
| 4 | 1/8" | 5/16" | 5/16" | 2 1/2" | Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 | 00000000 | 00000 |
| 5 | 3/16" | 7/16" | 7/16" | 2 3/4" | Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 | 00000000 | 00000 |
| 6 | 7/32" | 1/2" | 1/2" | 3" | Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 | 00000000 | 000000 |
| 7 | 1/4" | 5/8" | 5/8" | 3 1/2" | Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 | 00000000 | 000000 |
| 8 | 5/16" | 3/4" | 3/4" | 4" | Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 | 00000000 | 000000 |
Aluminum Titanium Nitride (AlTiN) Coated Carbide | |||||||||
2 Flute | |||||||||
| 00 | 0.025" | 1/8" | 1/8" | 1 1/2" | Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 | 00000000 | 00000 |
| 0 | 1/32" | 1/8" | 1/8" | 1 1/2" | Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 | 00000000 | 00000 |
| 1 | 3/64" | 1/8" | 1/8" | 1 1/2" | Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 | 00000000 | 00000 |
| 2 | 5/64" | 3/16" | 3/16" | 2" | Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 | 00000000 | 00000 |
| 3 | 7/64" | 1/4" | 1/4" | 2" | Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 | 00000000 | 00000 |
| 4 | 1/8" | 5/16" | 5/16" | 2 1/2" | Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 | 00000000 | 00000 |
| 5 | 3/16" | 7/16" | 7/16" | 2 3/4" | Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 00000 | 00000000 | 00000 |
| 6 | 7/32" | 1/2" | 1/2" | 3" | Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 | 00000000 | 000000 |
| 7 | 1/4" | 5/8" | 5/8" | 3 1/2" | Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 | 00000000 | 000000 |
| 8 | 5/16" | 3/4" | 3/4" | 4" | Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | 00000000 | 000000 | 00000000 | 000000 |
High-Speed Steel Drill-Point Countersink Sets
with Two Countersinking Ends for Screws
Turn the countersink around when one end dulls for a sharp cutting edge. The countersinks in these sets have a small drill point on the tip for drilling and countersinking holes with the same tool. The drill point creates a small pilot hole at the bottom of the countersunk hole to facilitate drilling. 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.
| Trade Size | Number of Pieces | Number of Flutes | Number of Countersinking Ends | Shank Type | For Use On | Container Type | Features | Set | |
82° Countersink Angle | |||||||||
|---|---|---|---|---|---|---|---|---|---|
Uncoated High-Speed Steel | |||||||||
| 1, 2, 3, 4, 5 | 5 | 2 | 2 | Round | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | Plastic Case | Built-In Pilot | 000000 | 000000 |
90° Countersink Angle | |||||||||
Uncoated High-Speed Steel | |||||||||
| 1, 2, 3, 4, 5 | 5 | 2 | 2 | Round | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | Plastic Case | Built-In Pilot | 000000 | 00000 |
Carbide Drill-Point Countersink Sets with Two Countersinking Ends for Screws
For excellent performance on hard and abrasive materials, carbide is harder, stronger, and more wear resistant than high-speed steel. The countersinks in these sets require rigid tool holding to prevent breakage and are not for use with hand-held tools. All have a small drill point on the tip for drilling and countersinking holes with the same tool. The drill point creates a small pilot hole at the bottom of the countersunk hole to facilitate drilling. 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. When one end of the countersink dulls, turn it around for a sharp cutting edge.
TiCN (titanium carbonitride) coated countersinks last longer than uncoated countersinks and are best for general purpose cuts as well as for use on aluminum.
TiAlN (titanium aluminum nitride) coated countersinks are the best choice for materials up to a Rockwell hardness of C50. They are not for use on aluminum.
AlTiN (aluminum titanium nitride) coated countersinks are for high-speed machining on materials with a Rockwell hardness up to C70. They are not for use on aluminum.
For technical drawings and 3-D models, click on a part number.
| Trade Size | Number of Pieces | Number of Countersinking Ends | Shank Type | For Use On | Container Type | Features | Set | |
82° Countersink Angle | ||||||||
|---|---|---|---|---|---|---|---|---|
Uncoated Carbide | ||||||||
| 1, 2, 3, 4, 5, 6 | 6 | 2 | Round | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | Metal Case | Built-In Pilot | 0000000 | 0000000 |
Titanium Carbonitride (TiCN) Coated Carbide | ||||||||
| 1, 2, 3, 4, 5, 6 | 6 | 2 | Round | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | Metal Case | Built-In Pilot | 00000000 | 000000 |
Titanium Aluminum Nitride (TiAlN) Coated Carbide | ||||||||
| 1, 2, 3, 4, 5, 6 | 6 | 2 | Round | Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | Metal Case | Built-In Pilot | 00000000 | 000000 |
Aluminum Titanium Nitride (AlTiN) Coated Carbide | ||||||||
| 1, 2, 3, 4, 5, 6 | 6 | 2 | Round | Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | Metal Case | Built-In Pilot | 00000000 | 000000 |
90° Countersink Angle | ||||||||
Uncoated Carbide | ||||||||
| 1, 2, 3, 4, 5, 6 | 6 | 2 | Round | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | Metal Case | Built-In Pilot | 0000000 | 000000 |
Titanium Carbonitride (TiCN) Coated Carbide | ||||||||
| 1, 2, 3, 4, 5, 6 | 6 | 2 | Round | Aluminum, Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | Metal Case | Built-In Pilot | 00000000 | 000000 |
Titanium Aluminum Nitride (TiAlN) Coated Carbide | ||||||||
| 1, 2, 3, 4, 5, 6 | 6 | 2 | Round | Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | Metal Case | Built-In Pilot | 00000000 | 000000 |
Aluminum Titanium Nitride (AlTiN) Coated Carbide | ||||||||
| 1, 2, 3, 4, 5, 6 | 6 | 2 | Round | Brass, Bronze, Fiberglass, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium, Tool Steel | Metal Case | Built-In Pilot | 00000000 | 000000 |