About Tool Steel
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About Drill Bits
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Drill Bit Decimal Size Equivalents
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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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Drill Bits
These jobbers'-length bits have the rigidity and length required for most applications.
Black-oxide and black-and-gold-oxide drill bits produce less friction than uncoated drill bits.
For technical drawings and 3-D models, click on a part number.
Shank | Each | Pkg. | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | Specifications Met | For Use On | Each | Pkg. Qty. | Pkg. | ||
Inch | |||||||||||||
Black-Oxide High-Speed Steel | |||||||||||||
1/32" | 0.0313" | 1 3/8" | 0.45" | Round | 1/32" | Standard | NAS907 Type B | Steel, Iron, Stainless Steel | 00000000 | 00000 | 12 | 00000000 | 000000 |
Uncoated High-Speed Steel | |||||||||||||
1/32" | 0.0313" | 1 3/8" | 0.43" | Round | 1/32" | Standard | __ | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 0000000 | 0000 | 12 | 00000000 | 00000 |
Cobalt Steel Drill Bits
These jobbers'-length bits have the rigidity and length required for most applications. Made of cobalt steel, which has better heat and wear resistance than high-speed steel, they can run up to 25% faster and have a longer tool life.
Titanium-nitride (TiN) coated drill bits last longer and can drill at higher speeds than uncoated drill bits.
Titanium-aluminum-nitride (TiAlN) coated drill bits are the most wear and temperature resistant for the longest life and highest drilling speeds.
Drill bits with a split point keep centered without a pilot hole.
For technical drawings and 3-D models, click on a part number.
Shank | Each | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | Specifications Met | For Use On | Each | |
Inch | ||||||||||
Uncoated Cobalt Steel | ||||||||||
1/32" | 0.0313" | 1 3/8" | 0.45" | Round | 1/32" | Standard | __ | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 00000000 | 00000 |
Titanium-Nitride (TiN) Coated Cobalt Steel | ||||||||||
1/32" | 0.031" | 1 3/8" | 0.5" | Round | 1/32" | Split | NAS907 Type J | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 000000000 | 0000 |
Titanium-Aluminum-Nitride (TiAlN) Coated Cobalt Steel | ||||||||||
1/32" | 0.031" | 1 3/8" | 0.5" | Round | 1/32" | Split | NAS907 Type J | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 000000000 | 00000 |
Carbide Drill Bits
These jobbers'-length bits have the rigidity and length required for most applications. Made of solid carbide for the highest accuracy and longest tool life, they are harder, stronger, and more wear resistant than high-speed steel, cobalt steel, and carbide-tipped bits. They retain a sharp, hard edge at high temperatures for the best performance on hard and abrasive material. The four-facet point keeps the bit centered without a pilot hole. These bits require rigid toolholding to prevent breakage and should not be used in hand-held drilling applications.
Titanium-nitride (TiN) coated drill bits last longer and can drill at higher speeds than uncoated drill bits.
Titanium-aluminum-nitride (TiAlN) coated drill bits are the most wear and temperature resistant for the longest life and highest drilling speeds.
For technical drawings and 3-D models, click on a part number.
Shank | |||||||||
---|---|---|---|---|---|---|---|---|---|
Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | |
Inch | |||||||||
Uncoated Carbide | |||||||||
1/32" | 0.0313" | 1 1/4" | 0.25" | Round | 1/32" | Four Facet | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
Titanium-Nitride (TiN) Coated Carbide | |||||||||
1/32" | 0.0313" | 1 1/4" | 0.25" | Round | 1/32" | Four Facet | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
Titanium-Aluminum-Nitride (TiAlN) Coated Carbide | |||||||||
1/32" | 0.0313" | 1 1/4" | 0.25" | Round | 1/32" | Four Facet | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 0000000 | 00000 |
Quick-Change Carbide Drill Bits
Make fast bit changes—all of these bits have the same shank diameter, eliminating the need for different collets to hold each size. Made of solid carbide for the highest accuracy and longest tool life, they are harder, stronger, and more wear resistant than high-speed steel, cobalt steel, and carbide-tipped bits. They retain a sharp, hard edge at high temperatures for the best performance on hard and abrasive material. These bits require rigid toolholding to prevent breakage and should not be used in handheld drilling. All are jobbers’ length so they have the rigidity and length required for most applications.
Titanium-nitride (TiN) coated drill bits last longer and can drill at higher speeds than uncoated drill bits.
Titanium-aluminum-nitride (TiAlN) coated drill bits are the most wear and temperature resistant for the longest life and highest drilling speeds.
Drill bits with a four-facet point keep centered without a pilot hole.
For technical drawings and 3-D models, click on a part number.
Shank | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|
Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Specifications Met | Each | |
Inch | ||||||||||
Uncoated Carbide | ||||||||||
1/32" | 0.0313" | 1 1/2" | 0.32" | Round | 1/8" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | DIN 6537L | 0000000 | 00000 |
Titanium-Nitride (TiN) Coated Carbide | ||||||||||
1/32" | 0.0312" | 1 1/2" | 0.19" | Round | 1/8" | Four Facet | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | __ | 00000000 | 00000 |
Titanium-Aluminum-Nitride (TiAlN) Coated Carbide | ||||||||||
1/32" | 0.0313" | 1 1/2" | 0.3" | Round | 1/8" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | __ | 00000000 | 00000 |
High-Speed Steel Left-Hand Drill Bits
Also known as reverse-flute bits, the flutes spiral in the opposite direction of other bits. Use in counterclockwise drilling applications such as removing broken screws. These bits are jobbers' length and have the rigidity and length required for most applications.
For technical drawings and 3-D models, click on a part number.
Shank | |||||||||
---|---|---|---|---|---|---|---|---|---|
Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | |
Inch | |||||||||
Uncoated High-Speed Steel | |||||||||
1/32" | 0.0313" | 1 3/8" | 0.43" | Round | 1/32" | Standard | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
Extensions for Round-Shank Drill Bits
Attach to the shank of a drill bit to extend its reach.
To attach one-piece extensions, insert a drill bit into the extension and tighten the knurled collar.
For technical drawings and 3-D models, click on a part number.
High-Speed Steel Drill-Point Countersinks for Lathe Centers
When one end dulls, turn the countersink around for a fresh cutting edge. The 60° countersink angle is compatible with the profile of centers on a lathe. 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 gap that prevents damage to the points of live or dead centers.
TiN (titanium nitride) coated countersinks last longer and withstand more heat than uncoated countersinks.
For technical drawings and 3-D models, click on a part number.
Dia. | 60° Countersink Angle | ||||||
---|---|---|---|---|---|---|---|
Countersink Trade Size | For Drill Bit Size | Body | Shank | Overall Lg. | For Use On | Each | |
Uncoated High-Speed Steel | |||||||
2 Flute | |||||||
0 | 1/32" | 1/8" | 1/8" | 1 1/4" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 00000 |
Titanium Nitride (TiN) Coated High-Speed Steel | |||||||
2 Flute | |||||||
0 | 1/32" | 1/8" | 1/8" | 1 1/4" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 00000 |
Cobalt Steel Drill-Point Countersinks for Lathe Centers
For use on hard-to-machine materials, these countersinks are cobalt steel for better heat and abrasion resistance than high-speed steel. The 60° countersink angle is compatible with the profile of centers on a lathe. They have a small drill point on the tip for drilling and countersinking holes with the same tool. The drill point creates a small gap that prevents damage to the points of live or dead centers.
For technical drawings and 3-D models, click on a part number.
Dia. | 60° Countersink Angle | ||||||
---|---|---|---|---|---|---|---|
Countersink Trade Size | For Drill Bit Size | Body | Shank | Overall Lg. | For Use On | Each | |
Uncoated Cobalt Steel | |||||||
2 Flute | |||||||
0 | 1/32" | 1/8" | 1/8" | 1 1/8" | Aluminum, Brass, Bronze, Hardened Steel, Iron, Nickel, Plastic, Stainless Steel, Steel, Titanium | 00000000 | 000000 |
Carbide Drill-Point Countersinks for Lathe Centers
Carbide is harder, stronger, and more wear resistant than cobalt steel and high-speed steel for better performance on hard and abrasive materials. These countersinks require rigid tool holding to prevent breakage and are not for use with hand-held tools. The 60° countersink angle is compatible with the profile of centers on a lathe. They have a small drill point on the tip for drilling and countersinking holes with the same tool. The drill point creates a small gap that prevents damage to the points of live or dead centers. Turn the countersink around for a sharp cutting edge when one end dulls.
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. | 60° Countersink Angle | ||||||
---|---|---|---|---|---|---|---|
Countersink Trade Size | For Drill Bit Size | Body | Shank | Overall Lg. | For Use On | Each | |
Uncoated Carbide | |||||||
2 Flute | |||||||
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 | 000000 |
Titanium Carbonitride (TiCN) Coated Carbide | |||||||
2 Flute | |||||||
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 |
Titanium Aluminum Nitride (TiAlN) Coated Carbide | |||||||
2 Flute | |||||||
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 |
Aluminum Titanium Nitride (AlTiN) Coated Carbide | |||||||
2 Flute | |||||||
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 |
Radius-Style Drill-Point Countersinks for Lathe Centers
These countersinks create a surface that minimizes contact between the material and the lathe centers to prevent damage and allow for more precise machining. The 60° countersink angle is compatible with the profile of centers on a lathe. They have a small drill point on the tip for drilling and countersinking holes with the same tool. The drill point creates a small gap that prevents damage to the points of live or dead centers. When one end dulls, turn the countersink around for a sharp cutting edge.
For technical drawings and 3-D models, click on a part number.
Dia. | 60° Countersink Angle | ||||||
---|---|---|---|---|---|---|---|
Countersink Trade Size | For Drill Bit Size | Body | Shank | Overall Lg. | For Use On | Each | |
Uncoated High-Speed Steel | |||||||
0 | 1/32" | 1/8" | 1/8" | 1 1/4" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 000000 |
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. | |||||||
---|---|---|---|---|---|---|---|
Countersink Trade Size | For Drill Bit Size | Body | Shank | Overall Lg. | For Use On | Each | |
82° Countersink Angle | |||||||
High-Speed Steel | |||||||
0 | 1/32" | 1/8" | 1/8" | 1 1/4" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 000000 |
90° Countersink Angle | |||||||
High-Speed Steel | |||||||
0 | 1/32" | 1/8" | 1/8" | 1 1/4" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 00000000 | 00000 |
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 | |||||||
---|---|---|---|---|---|---|---|---|---|
Countersink Trade Size | For Drill Bit Size | Body | Shank | Overall Lg. | For Use On | Each | Each | ||
Uncoated Carbide | |||||||||
2 Flute | |||||||||
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 | 000000 | 0000000 | 000000 |
Titanium Carbonitride (TiCN) Coated Carbide | |||||||||
2 Flute | |||||||||
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 |
Titanium Aluminum Nitride (TiAlN) Coated Carbide | |||||||||
2 Flute | |||||||||
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 |
Aluminum Titanium Nitride (AlTiN) Coated Carbide | |||||||||
2 Flute | |||||||||
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 |
Hardened Undersized High-Speed M2 Tool Steel Rods
- Yield Strength: Not Rated
- Hardness: Rockwell C60 (Very Hard)
These rods, also known as drill blanks, have an undersized diameter for machining your own jobbers'-length drill bits. They're hardened for increased abrasion and impact resistance. M2 tool steel offers a nice balance of wear resistance and machinability. It has a high molybdenum content, which allows it to maintain sharp cutting edges even at elevated temperatures.
For technical drawings and 3-D models, click on a part number.
Certificates with a traceable lot number are available for these products. Download certificates from ORDER HISTORY after your order ships.
Dia. | Dia. Tolerance | Drill Bit Size | Lg. | Mechanical Finish | Straightness Tolerance | Each | |
0.0312" | -0.0002" to 0" | 1/32" | 1 3/8" | Precision Ground | 0.012" per ft. | 00000000 | 00000 |