System of Measurement System of Measurement |
|---|
|
Size Size |
|---|
Decimal Size Equivalent Decimal Size Equivalent |
|---|
Material Material |
|---|
|
Finish Finish |
|---|
|
Length Class Length Class |
|---|
 |
| Jobbers' Length |
 |
| Short Length |
 |
| Extended Length |
For Use On For Use On |
|---|
|
|
Point Style Point Style |
|---|
 |
| Split |
 |
| Standard |
 |
| Four Facet |
 |
| Brad |
Maximum Drilling Depth Maximum Drilling Depth | Show |
|---|
|
Maximum Drilling Depth Maximum Drilling Depth | Hide |
|---|
Shank Type Shank Type |
|---|
 | Round |
Flute Direction Flute Direction |
|---|
 |
| Right Hand |
Shank Size Shank Size |
|---|
Bit Style Bit Style |
|---|
 | Spiral Flute |
 | Parabolic Spiral Flute |
Individual/Set Individual/Set |
|---|
|
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) |
|---|
|
DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
|---|
Drill Bit Decimal Size Equivalents
More
About Drill Bits
More
Short-Length Drill Bits
Also known as screw-machine and stub-length bits, these provide maximum rigidity for drilling straighter holes than jobbers'- and maintenance-length drill bits.
Black-oxide drill bits produce less friction than uncoated 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 | Each | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | Specifications Met | For Use On | Each | |
Wire Gauge | ||||||||||
Black-Oxide High-Speed Steel | ||||||||||
| 34 ga | 0.111" | 1 7/8" | 0.7" | Round | 0.111" | Split | ASME B94.11M | Steel, Iron, Stainless Steel | 00000000 | 00000 |
| 33 ga | 0.113" | 1 7/8" | 0.7" | Round | 0.113" | Split | ASME B94.11M | Steel, Iron, Stainless Steel | 00000000 | 0000 |
| 32 ga | 0.116" | 1 7/8" | 0.7" | Round | 0.116" | Split | ASME B94.11M | Steel, Iron, Stainless Steel | 00000000 | 0000 |
Extended-Length Drill Bits
Access hard-to-reach spots and drill deep holes.
Black-oxide drill bits produce less friction 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 | |||||||||
Black-Oxide High-Speed Steel | |||||||||
| 70 ga | 0.028" | 2" | 0.7" | Round | 0.028" | Standard | Steel, Iron, Stainless Steel | 00000000 | 00000 |
| 69 ga | 0.0292" | 2" | 0.7" | Round | 0.0292" | Standard | Steel, Iron, Stainless Steel | 00000000 | 0000 |
| 68 ga | 0.031" | 2" | 0.7" | Round | 0.031" | Standard | Steel, Iron, Stainless Steel | 00000000 | 0000 |
| 67 ga | 0.032" | 2" | 0.7" | Round | 0.032" | Standard | Steel, Iron, Stainless Steel | 00000000 | 0000 |
| 66 ga | 0.033" | 2" | 0.7" | Round | 0.033" | Standard | Steel, Iron, Stainless Steel | 00000000 | 0000 |
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.
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 | |||||||||
| 3/64" | 0.0469" | 0.7" | Round | 3/64" | Standard | NAS907 Type B | Steel, Iron, Stainless Steel | 0000000 | 00000 |
12" Overall Lg. | |||||||||
Inch | |||||||||
Black-Oxide High-Speed Steel | |||||||||
| 3/64" | 0.0469" | 0.7" | Round | 3/64" | Standard | 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 | |||||||||
| 52 ga | 0.0635" | 1 7/8" | 0.7" | Round | 0.0635" | Split | Steel, Iron, Stainless Steel | 00000000 | 00000 |
Titanium-Nitride (TiN) Coated High-Speed Steel | |||||||||
| 52 ga | 0.0635" | 1 7/8" | 0.7" | Round | 0.0635" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 000000000 | 0000 |
Uncoated High-Speed Steel | |||||||||
| 52 ga | 0.0635" | 1 7/8" | 0.7" | Round | 0.0635" | Split | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 00000000 | 0000 |
Short-Flute Cobalt Steel Drill Bits
The short flutes on these jobbers'-length bits provide increased rigidity for drilling straighter holes. 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. 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 | Size | Point Style | For Use On | Specifications Met | Each | |
Wire Gauge | ||||||||||
Black-Oxide Cobalt Steel | ||||||||||
| 32 ga | 0.116" | 2 3/4" | 0.7" | Round | 0.116" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 00000 |
| 31 ga | 0.12" | 2 3/4" | 0.7" | Round | 0.12" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | NAS907 Type D | 00000000 | 0000 |
Short-Length Cobalt Steel Drill Bits
Also known as screw-machine and stub-length bits, these provide maximum rigidity for drilling straighter holes than jobbers'-length drill bits. 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.
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 | ||||||||
|---|---|---|---|---|---|---|---|---|---|
| Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | |
Wire Gauge | |||||||||
Uncoated Cobalt Steel | |||||||||
| 41 ga | 0.096" | 1 7/8" | 0.7" | Round | 0.096" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 000000000 | 00000 |
| 40 ga | 0.098" | 1 7/8" | 0.7" | Round | 0.098" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 00000000 | 0000 |
| 39 ga | 0.0995" | 1 7/8" | 0.7" | Round | 0.0995" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 000000000 | 0000 |
| 38 ga | 0.1015" | 1 7/8" | 0.7" | Round | 0.1015" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 000000000 | 0000 |
| 37 ga | 0.104" | 1 7/8" | 0.7" | Round | 0.104" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 000000000 | 0000 |
| 36 ga | 0.1065" | 1 7/8" | 0.7" | Round | 0.1065" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 000000000 | 0000 |
| 35 ga | 0.11" | 1 7/8" | 0.7" | Round | 0.11" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 000000000 | 0000 |
| 34 ga | 0.111" | 1 7/8" | 0.7" | Round | 0.111" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 000000000 | 0000 |
| 33 ga | 0.113" | 1 7/8" | 0.7" | Round | 0.113" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 000000000 | 0000 |
| 32 ga | 0.116" | 1 7/8" | 0.7" | Round | 0.116" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 000000000 | 0000 |
| 31 ga | 0.12" | 1 7/8" | 0.7" | Round | 0.12" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 00000000 | 0000 |
| 30 ga | 0.1285" | 2" | 0.7" | Round | 0.1285" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 0000 |
| 29 ga | 0.136" | 2" | 0.7" | Round | 0.136" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 00000000 | 0000 |
| 28 ga | 0.1405" | 2" | 0.7" | Round | 0.1405" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 00000000 | 0000 |
| 27 ga | 0.144" | 2 1/8" | 0.7" | Round | 0.144" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 00000000 | 0000 |
| 26 ga | 0.147" | 2 1/8" | 0.7" | Round | 0.147" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 00000000 | 0000 |
| 25 ga | 0.1495" | 2 1/8" | 0.7" | Round | 0.1495" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 00000000 | 0000 |
Titanium-Nitride (TiN) Coated Cobalt Steel | |||||||||
| 16 ga | 0.177" | 2 3/16" | 0.7" | Round | 0.177" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 000000000 | 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 | |||||||||
| 1/16" | 0.0625" | 1 7/8" | 0.7" | Round | 1/16" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 000000000 | 00000 |
Titanium-Nitride (TiN) Coated Cobalt Steel | |||||||||
| 1/16" | 0.0625" | 1 7/8" | 0.7" | Round | 1/16" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 0000000 | 0000 |
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 | |||||||||
| 5/64" | 0.0781" | 1 3/4" | 0.7" | Round | 5/64" | Four Facet | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
Titanium-Nitride (TiN) Coated Carbide | |||||||||
| 5/64" | 0.0781" | 1 3/4" | 0.7" | Round | 5/64" | Four Facet | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
Titanium-Aluminum-Nitride (TiAlN) Coated Carbide | |||||||||
| 5/64" | 0.0781" | 1 3/4" | 0.7" | Round | 5/64" | Four Facet | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 0000000 | 00000 |
Wire Gauge | |||||||||
Uncoated Carbide | |||||||||
| 50 ga | 0.07" | 1 3/4" | 0.7" | Round | 0.07" | Four Facet | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
| 49 ga | 0.073" | 1 3/4" | 0.7" | Round | 0.073" | Four Facet | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
| 48 ga | 0.076" | 1 3/4" | 0.7" | Round | 0.076" | Four Facet | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
| 47 ga | 0.0785" | 1 3/4" | 0.7" | Round | 0.0785" | Four Facet | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
| 46 ga | 0.081" | 1 3/4" | 0.7" | Round | 0.081" | Four Facet | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
| 45 ga | 0.082" | 1 3/4" | 0.7" | Round | 0.082" | Four Facet | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
Titanium-Nitride (TiN) Coated Carbide | |||||||||
| 50 ga | 0.07" | 1 3/4" | 0.7" | Round | 0.07" | Four Facet | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
| 49 ga | 0.073" | 1 3/4" | 0.7" | Round | 0.073" | Four Facet | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
| 48 ga | 0.076" | 1 3/4" | 0.7" | Round | 0.076" | Four Facet | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
| 47 ga | 0.0785" | 1 3/4" | 0.7" | Round | 0.0785" | Four Facet | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
| 46 ga | 0.081" | 1 3/4" | 0.7" | Round | 0.081" | Four Facet | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
| 45 ga | 0.082" | 1 3/4" | 0.7" | Round | 0.082" | Four Facet | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 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 | ||||||||
| 5/64" | 0.0781" | 1 3/4" | 0.7" | Round | 5/64" | Brad | 0000000 | 000000 |
Diamond-Coated Carbide | ||||||||
| 5/64" | 0.0781" | 1 3/4" | 0.7" | Round | 5/64" | Split | 0000000 | 00000 |
Wire Gauge | ||||||||
Uncoated Carbide | ||||||||
| 50 ga | 0.07" | 1 3/4" | 0.7" | Round | 0.07" | Brad | 00000000 | 00000 |
| 49 ga | 0.073" | 1 3/4" | 0.7" | Round | 0.073" | Brad | 0000000 | 00000 |
| 48 ga | 0.076" | 1 3/4" | 0.7" | Round | 0.076" | Brad | 00000000 | 00000 |
| 47 ga | 0.0785" | 1 3/4" | 0.7" | Round | 0.0785" | Brad | 00000000 | 00000 |
| 46 ga | 0.081" | 1 3/4" | 0.7" | Round | 0.081" | Brad | 00000000 | 00000 |
| 45 ga | 0.082" | 1 3/4" | 0.7" | Round | 0.082" | Brad | 00000000 | 00000 |
Carbide Drill Bits for Stainless Steel and Nickel
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. All are titanium nitride (TiN) coated for longer life and higher drilling speeds. They are short length, also known as screw machine and stub length, which provides maximum rigidity for drilling straighter holes than standard-length drill bits. The 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 | Size | Point Style | Each | |
Inch | ||||||||
Titanium-Nitride (TiN) Coated Carbide | ||||||||
| 15/64" | 0.2344" | 2 1/2" | 0.7" | Round | 15/64" | Split | 00000000 | 000000 |