System of Measurement System of Measurement |
---|
|
Decimal Size Equivalent Decimal Size Equivalent |
---|
|
|
|
Material Material |
---|
|
Finish Finish |
---|
|
For Use On For Use On |
---|
|
|
Shank Type Shank Type |
---|
![]() | Round |
Length Class Length Class |
---|
![]() |
Jobbers' Length |
![]() |
Extended Length |
Point Style Point Style |
---|
![]() |
Split |
![]() |
Standard |
![]() |
Four Facet |
![]() |
Brad |
Bit Style Bit Style |
---|
![]() | Spiral Flute |
![]() | Parabolic Spiral Flute |
Flute Direction Flute Direction |
---|
![]() |
Right Hand |
Shank Size Shank Size |
---|
|
|
|
Maximum Drilling Depth Maximum Drilling Depth | Show |
---|
|
Maximum Drilling Depth Maximum Drilling Depth | Hide |
---|
Individual/Set Individual/Set |
---|
|
DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
---|
RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
---|
|
REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
---|
|
Number of Flutes Number of Flutes |
---|
![]() | 3 |
Specifications Met Specifications Met |
---|
Drill Bit Decimal Size Equivalents
More
About Drill Bits
More
Short-Flute Extended-Length Drill Bits

The short flutes on these bits provide increased rigidity for drilling straighter holes and the long length lets you access hard-to-reach spots.
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 | |||||||||
---|---|---|---|---|---|---|---|---|---|
Size | Decimal Size Equivalent | Max. Drilling Depth | Type | Size | Point Style | Specifications Met | For Use On | Each | |
6" Overall Lg. | |||||||||
Inch | |||||||||
Black-Oxide High-Speed Steel | |||||||||
7/32" | 0.2188" | 2.2" | Round | 7/32" | Split | NAS907 Type B | Steel, Iron, Stainless Steel | 0000000 | 00000 |
12" Overall Lg. | |||||||||
Inch | |||||||||
Black-Oxide High-Speed Steel | |||||||||
7/32" | 0.2188" | 2.2" | Round | 7/32" | Split | NAS907 Type B | Steel, Iron, Stainless Steel | 0000000 | 00000 |
Chip-Clearing Drill Bits



These jobbers'-length bits have the rigidity and length required for most applications. The flutes are designed to lift chips out of the hole, reducing clogging and improving coolant flow.
Parabolic spiral flute drill bits have wider flutes for more efficient chip evacuation than spiral-flute bits.
Black-oxide drill bits produce less friction than uncoated drill bits.
Titanium-nitride (TiN) coated drill bits last longer and can drill at higher speeds than uncoated and black-oxide drill bits.
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 | |||||||||
---|---|---|---|---|---|---|---|---|---|
Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | |
Wire Gauge—Parabolic Spiral Flute | |||||||||
Black-Oxide High-Speed Steel | |||||||||
2 ga | 0.221" | 3 7/8" | 2.2" | Round | 0.221" | Split | Steel, Iron, Stainless Steel | 00000000 | 00000 |
1 ga | 0.228" | 3 7/8" | 2.2" | Round | 0.228" | Split | Steel, Iron, Stainless Steel | 00000000 | 0000 |
Titanium-Nitride (TiN) Coated High-Speed Steel | |||||||||
2 ga | 0.221" | 3 7/8" | 2.2" | Round | 0.221" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 000000000 | 00000 |
1 ga | 0.228" | 3 7/8" | 2.2" | Round | 0.228" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 000000000 | 00000 |
Uncoated High-Speed Steel | |||||||||
2 ga | 0.221" | 3 7/8" | 2.2" | Round | 0.221" | Split | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 00000000 | 0000 |
1 ga | 0.228" | 3 7/8" | 2.2" | Round | 0.228" | Split | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 00000000 | 0000 |
Chip-Clearing Cobalt Steel Drill Bits


The parabolic spiral flutes lift chips out of the hole, reducing clogging and improving coolant flow. With better heat and wear resistance than high-speed steel, these cobalt steel bits can run up to 25% faster and have a longer tool life. All are jobbers’ length so they have the rigidity and length required for most applications. A split point keeps the bit centered without a pilot hole.
Titanium-nitride (TiN) coated drill bits last longer and can drill at higher speeds than uncoated drill bits.
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 | |
Inch—Parabolic Spiral Flute | |||||||||
Uncoated Cobalt Steel | |||||||||
7/32" | 0.2188" | 3 5/8" | 2.2" | Round | 7/32" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 000000000 | 00000 |
Titanium-Nitride (TiN) Coated Cobalt Steel | |||||||||
7/32" | 0.2188" | 3 5/8" | 2.2" | Round | 7/32" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 0000000 | 00000 |
15/64" | 0.2344" | 3 5/8" | 2.2" | Round | 15/64" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 0000000 | 00000 |
Wire Gauge—Parabolic Spiral Flute | |||||||||
Uncoated Cobalt Steel | |||||||||
4 ga | 0.209" | 3 5/8" | 2.2" | Round | 0.209" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 00000000 | 00000 |
3 ga | 0.213" | 3 5/8" | 2.2" | Round | 0.213" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 00000000 | 00000 |
2 ga | 0.221" | 3 5/8" | 2.2" | Round | 0.221" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 00000000 | 00000 |
1 ga | 0.228" | 3 5/8" | 2.2" | Round | 0.228" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 00000000 | 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 | |||||||||
---|---|---|---|---|---|---|---|---|---|
Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | |
Inch | |||||||||
Uncoated Carbide | |||||||||
23/64" | 0.3594" | 4 1/4" | 2.2" | Round | 23/64" | Four Facet | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
3/8" | 0.375" | 4 1/4" | 2.2" | Round | 3/8" | Four Facet | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
Titanium-Nitride (TiN) Coated Carbide | |||||||||
23/64" | 0.3594" | 4 1/4" | 2.2" | Round | 23/64" | Four Facet | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
3/8" | 0.375" | 4 1/4" | 2.2" | Round | 3/8" | Four Facet | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
Titanium-Aluminum-Nitride (TiAlN) Coated Carbide | |||||||||
23/64" | 0.3594" | 4 1/4" | 2.2" | Round | 23/64" | Four Facet | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 0000000 | 00000 |
3/8" | 0.375" | 4 1/4" | 2.2" | Round | 3/8" | Four Facet | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 0000000 | 00000 |
Letter | |||||||||
Uncoated Carbide | |||||||||
T | 0.358" | 4 1/4" | 2.2" | Round | 0.358" | Four Facet | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 00000000 | 00000 |
U | 0.368" | 4 1/4" | 2.2" | Round | 0.368" | Four Facet | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 00000000 | 00000 |
V | 0.377" | 4 1/4" | 2.2" | Round | 0.377" | Four Facet | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 00000000 | 00000 |
Smooth-Finish Carbide Drill Bits

Three cutting edges instead of the typical two enable these bits to drill holes with a smoother finish than other bits. 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 hand-held drilling. All are jobbers’ length so they have the rigidity and length required for most applications. A split point keeps the bit centered without a pilot hole.
For technical drawings and 3-D models, click on a part number.
Shank | |||||||||
---|---|---|---|---|---|---|---|---|---|
Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Shank Size | Point Style | For Use On | Each | |
Inch | |||||||||
Uncoated Carbide | |||||||||
3/8" | 0.375" | 4 1/4" | 2.2" | Round | 3/8" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
Letter | |||||||||
Uncoated Carbide | |||||||||
T | 0.358" | 4 1/4" | 2.2" | Round | 0.358" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
U | 0.368" | 4 1/4" | 2.2" | Round | 0.368" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
V | 0.377" | 4 1/4" | 2.2" | Round | 0.377" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
Chip-Clearing Carbide Drill Bits


The parabolic spiral flutes lift chips out of the hole, reducing clogging and improving coolant flow. For the highest accuracy and longest tool life, these solid-carbide bits 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 hand-held 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.
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 | |
Wire Gauge—Parabolic Spiral Flute | |||||||||
Uncoated Carbide | |||||||||
10 ga | 0.1935" | 3 21/32" | 2.2" | Round | 0.1937" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 00000000 | 000000 |
Titanium-Nitride (TiN) Coated Carbide | |||||||||
10 ga | 0.1935" | 3 21/32" | 2.2" | Round | 0.1937" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
Carbide-Tipped Drill Bits

These jobbers'-length bits have the rigidity and length required for most applications. Made of carbide-tipped steel, which has better wear resistance than high-speed steel and cobalt steel, they maintain a sharper, harder edge at high temperatures for excellent performance on abrasive material, such as plastic. Because they aren’t as brittle as solid carbide bits, they can be used in less rigid setups, such as a hand-held drill.
Drill bits with a split point keep centered without a pilot hole.
Drill bits with 135° point angle produce smaller chips than 118° point to prevent clogging.
For technical drawings and 3-D models, click on a part number.
Shank | Split Point | ||||||||
---|---|---|---|---|---|---|---|---|---|
Size | Decimal Size Equivalent | Overall Lg. | Type | Size | For Use On | Max. Drilling Dp. | Point Angle | Each | |
Wire Gauge | |||||||||
Uncoated Carbide-Tipped Steel | |||||||||
6 ga | 0.204" | 3 3/4" | Round | 0.204" | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 2.2" | 135° | 000000000 | 000000 |
5 ga | 0.2055" | 3 3/4" | Round | 0.2055" | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 2.2" | 135° | 000000000 | 00000 |
4 ga | 0.209" | 3 3/4" | Round | 0.209" | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 2.2" | 135° | 000000000 | 00000 |
3 ga | 0.213" | 3 3/4" | Round | 0.213" | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 2.2" | 135° | 000000000 | 00000 |
Drill Bits for Carbon Fiber, Fiberglass, and Graphite


These jobbers'-length bits have the rigidity and length required for most applications. They are designed to make clean holes in abrasive material. Their point keeps the bit centered without a pilot hole.
Uncoated drill bits have three drill points that make clean holes in fiber-reinforced composites without fraying or delaminating the material.
Diamond-coated drill bits are highly wear resistant for drilling in abrasive material. They last longer than uncoated bits.
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 | Each | |
Inch | ||||||||
Uncoated Carbide | ||||||||
23/64" | 0.3594" | 4 1/4" | 2.2" | Round | 23/64" | Brad | 0000000 | 000000 |
3/8" | 0.375" | 4 1/4" | 2.2" | Round | 3/8" | Brad | 0000000 | 00000 |
Diamond-Coated Carbide | ||||||||
3/8" | 0.375" | 4 1/4" | 2.2" | Round | 3/8" | Split | 0000000 | 000000 |
Letter | ||||||||
Uncoated Carbide | ||||||||
U | 0.368" | 4 1/4" | 2.2" | Round | 0.368" | Brad | 00000000 | 00000 |
V | 0.377" | 4 1/4" | 2.2" | Round | 0.377" | Brad | 00000000 | 000000 |