System of Measurement System of Measurement |
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Decimal Size Equivalent Decimal Size Equivalent |
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Material Material |
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Finish Finish |
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For Use On For Use On |
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Length Class Length Class |
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| Jobbers' Length |
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| Short Length |
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Shank Type Shank Type |
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| Round | Quick-Change Hex |
Point Style Point Style |
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| Standard |
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| Four Facet |
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Shank Size Shank Size |
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Bit Style Bit Style |
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 | Spiral Flute |
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Flute Direction Flute Direction |
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| Right Hand |
Maximum Drilling Depth Maximum Drilling Depth | Show |
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Maximum Drilling Depth Maximum Drilling Depth | Hide |
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Individual/Set Individual/Set |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Number of Flutes Number of Flutes |
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Specifications Met Specifications Met |
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For Screw Size For Screw Size |
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For Drilling Type For Drilling Type |
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Drill Bit Decimal Size Equivalents
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About Drill Bits
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About Masonry Drill Bits
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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.
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 | |
Inch | ||||||||||
Black-Oxide High-Speed Steel | ||||||||||
| 33/64" | 0.5156" | 3 7/8" | 1.6" | Round | 33/64" | Standard | ASME B94.11M | Steel, Iron, Stainless Steel | 00000000 | 000000 |
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 | |||||||||
| 27 ga | 0.144" | 3" | 1.6" | Round | 0.144" | Split | Steel, Iron, Stainless Steel | 00000000 | 00000 |
| 26 ga | 0.147" | 3" | 1.6" | Round | 0.147" | Split | Steel, Iron, Stainless Steel | 00000000 | 0000 |
| 25 ga | 0.1495" | 3" | 1.6" | Round | 0.1495" | Split | Steel, Iron, Stainless Steel | 00000000 | 0000 |
Titanium-Nitride (TiN) Coated High-Speed Steel | |||||||||
| 27 ga | 0.144" | 3" | 1.6" | Round | 0.144" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 000000000 | 0000 |
| 26 ga | 0.147" | 3" | 1.6" | Round | 0.147" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 000000000 | 0000 |
| 25 ga | 0.1495" | 3" | 1.6" | Round | 0.1495" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 00000000 | 0000 |
Uncoated High-Speed Steel | |||||||||
| 27 ga | 0.144" | 3" | 1.6" | Round | 0.144" | Split | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 00000000 | 0000 |
| 26 ga | 0.147" | 3" | 1.6" | Round | 0.147" | Split | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 00000000 | 0000 |
| 25 ga | 0.1495" | 3" | 1.6" | Round | 0.1495" | 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 | |||||||||
| 5/32" | 0.1563" | 2 7/8" | 1.6" | Round | 5/32" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 000000000 | 00000 |
Titanium-Nitride (TiN) Coated Cobalt Steel | |||||||||
| 5/32" | 0.1563" | 2 7/8" | 1.6" | Round | 5/32" | 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 | |||||||||
| 15/64" | 0.2344" | 3 1/4" | 1.6" | Round | 15/64" | Four Facet | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
| 1/4" | 0.25" | 3 1/4" | 1.6" | Round | 1/4" | Four Facet | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
Titanium-Nitride (TiN) Coated Carbide | |||||||||
| 15/64" | 0.2344" | 3 1/4" | 1.6" | Round | 15/64" | Four Facet | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
| 1/4" | 0.25" | 3 1/4" | 1.6" | Round | 1/4" | Four Facet | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
Titanium-Aluminum-Nitride (TiAlN) Coated Carbide | |||||||||
| 15/64" | 0.2344" | 3 1/4" | 1.6" | Round | 15/64" | Four Facet | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 0000000 | 00000 |
| 1/4" | 0.25" | 3 1/4" | 1.6" | Round | 1/4" | Four Facet | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 0000000 | 00000 |
Letter | |||||||||
Uncoated Carbide | |||||||||
| A | 0.234" | 3 1/4" | 1.6" | Round | 0.234" | Four Facet | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 00000000 | 00000 |
| B | 0.238" | 3 1/4" | 1.6" | Round | 0.238" | Four Facet | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 00000000 | 00000 |
| C | 0.242" | 3 1/4" | 1.6" | Round | 0.242" | Four Facet | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 00000000 | 00000 |
| D | 0.246" | 3 1/4" | 1.6" | Round | 0.246" | Four Facet | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 00000000 | 00000 |
| E | 0.25" | 3 1/4" | 1.6" | Round | 1/4" | Four Facet | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 00000000 | 00000 |
| F | 0.257" | 3 1/2" | 1.6" | Round | 0.257" | 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 | |||||||||
| 15/64" | 0.2344" | 3 1/4" | 1.6" | Round | 15/64" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
| 1/4" | 0.25" | 3 1/4" | 1.6" | Round | 1/4" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
Letter | |||||||||
Uncoated Carbide | |||||||||
| A | 0.234" | 3 1/4" | 1.6" | Round | 0.234" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
| B | 0.238" | 3 1/4" | 1.6" | Round | 0.238" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
| C | 0.242" | 3 1/4" | 1.6" | Round | 0.242" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
| D | 0.246" | 3 1/4" | 1.6" | Round | 0.246" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
| E | 0.25" | 3 1/4" | 1.6" | Round | 1/4" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
| F | 0.257" | 3 1/2" | 1.6" | Round | 0.257" | Split | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
Short-Flute Extended-Length Carbide-Tipped Drill Bits
The short flutes provide increased rigidity for drilling straighter holes and the long length lets you access hard-to-reach spots. More wear resistant than cobalt steel and high-speed steel, these carbide-tipped bits 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. A split point keeps the bit centered without a pilot hole.
For technical drawings and 3-D models, click on a part number.
Shank | 12" Overall Lg. | |||||||
|---|---|---|---|---|---|---|---|---|
| Size | Decimal Size Equivalent | Type | Size | Point Style | For Use On | Max. Drilling Dp. | Each | |
Wire Gauge | ||||||||
Uncoated Carbide-Tipped Steel | ||||||||
| 21 ga | 0.159" | Round | 0.159" | Split | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 1.6" | 00000000 | 000000 |
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 | Standard Point | Split Point | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Size | Decimal Size Equivalent | Overall Lg. | Type | Size | For Use On | Max. Drilling Dp. | Point Angle | Each | Point Angle | Each | ||
Inch | ||||||||||||
Uncoated Carbide-Tipped Steel | ||||||||||||
| 9/64" | 0.1406" | 3 1/8" | Round | 9/64" | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 1.6" | 118° | 0000000 | 000000 | 135° | 00000000 | 000000 |
| 5/32" | 0.1563" | 3 1/8" | Round | 5/32" | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 1.6" | 118° | 0000000 | 00000 | 135° | 00000000 | 00000 |
Hex-Shank Masonry Drill Bits for Tapping Screw Installation
Insert these bits directly into power screwdrivers, impact drivers, and other tools that accept 1/4" hex shanks. Each is precisely sized to match the tolerances necessary to achieve maximum holding strength from tapping screws. They have a built-in hex collar that acts as a stop for repeatable drilling depths. The split point keeps the bit centered without a pilot hole.
A drive sleeve (sold separately) slides over the drill bit to drive fasteners without removing the drill bit from the tool. One end engages with the hex-collar on the drill bit, while the other end holds a screwdriver bit.
For technical drawings and 3-D models, click on a part number.
Shank | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| For Screw Size | Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | |
Black-Oxide Carbide-Tipped Steel | ||||||||||
| 3/16" | 5/32" | 0.1563" | 4" | 1.60" | Quick-Change Hex | 1/4" | Split | Masonry | 0000000 | 00000 |
For Shank | |||||
|---|---|---|---|---|---|
| Type | Size | Overall Lg. | Material | Each | |
| Hex | 1/4" | 6" | Black-Oxide High-Speed Steel | 0000000 | 000000 |
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 | ||||||||
| 15/64" | 0.2344" | 3 1/4" | 1.6" | Round | 15/64" | Brad | 0000000 | 000000 |
| 1/4" | 0.25" | 3 1/4" | 1.6" | Round | 1/4" | Brad | 0000000 | 00000 |
Diamond-Coated Carbide | ||||||||
| 1/4" | 0.25" | 3 1/4" | 1.6" | Round | 1/4" | Split | 0000000 | 00000 |
Letter | ||||||||
Uncoated Carbide | ||||||||
| A | 0.234" | 3 1/4" | 1.6" | Round | 0.234" | Brad | 00000000 | 00000 |
| B | 0.238" | 3 1/4" | 1.6" | Round | 0.238" | Brad | 00000000 | 00000 |
| C | 0.242" | 3 1/4" | 1.6" | Round | 0.242" | Brad | 00000000 | 00000 |
| D | 0.246" | 3 1/4" | 1.6" | Round | 0.246" | Brad | 00000000 | 00000 |
| E | 0.25" | 3 1/4" | 1.6" | Round | 1/4" | Brad | 00000000 | 00000 |
| F | 0.257" | 3 1/2" | 1.6" | Round | 0.257" | Brad | 00000000 | 00000 |