About Tool Steel
More
Drill Bit Decimal Size Equivalents
More
About Drill Bits
More
Drill Bit Sets

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.
Titanium-nitride (TiN) coated drill bits last longer and can drill at higher speeds than uncoated and oxide-coated 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.
No. of Pieces | Drill Bit Sizes Included | Point Style | Specifications Met | For Use On | Each | |
Letter | ||||||
---|---|---|---|---|---|---|
Black-Oxide High-Speed Steel | ||||||
26 | A-Z | Split | NAS907 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000000 |
Titanium-Nitride (TiN) Coated High-Speed Steel | ||||||
26 | A-Z | Split | NAS907 Type B | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 00000000 | 000000 |
Titanium-Aluminum-Nitride (TiAlN) Coated High-Speed Steel | ||||||
26 | A-Z | Split | NAS907 Type B | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 0000000 | 000000 |
Uncoated High-Speed Steel | ||||||
26 | A-Z | Standard | __ | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
Short-Length Drill Bit Sets

Also known as screw-machine and stub-length bits, these provide maximum rigidity for drilling straighter holes than jobbers'- and maintenance-length drill bits.
For technical drawings and 3-D models, click on a part number.
Number of Pieces | Drill Bit Sizes Included | Point Style | For Use On | Each | |
Letter | |||||
---|---|---|---|---|---|
Uncoated High-Speed Steel | |||||
26 | A-Z | Standard | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 0000000 | 0000000 |
Cobalt Steel Drill Bit Sets

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.
Drill bits with a split point keep centered without a pilot hole.
For technical drawings and 3-D models, click on a part number.
Number of Pieces | Drill Bit Sizes Included | Point Style | Specifications Met | For Use On | Each | |
Letter | ||||||
---|---|---|---|---|---|---|
Uncoated Cobalt Steel | ||||||
26 | A-Z | Split | NAS907 Type J | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 0000000 |
Short-Length Cobalt Steel Drill Bit Sets

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.
Drill bits with a split point keep centered without a pilot hole.
For technical drawings and 3-D models, click on a part number.
Number of Pieces | Drill Bit Sizes Included | Point Style | For Use On | Each | |
Letter | |||||
---|---|---|---|---|---|
Uncoated Cobalt Steel | |||||
26 | A-Z | Split | Steel, Hardened Steel, Iron, Stainless Steel, Nickel | 0000000 | 0000000 |
Left-Hand Drill Bit Sets

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.
Number of Pieces | Drill Bit Sizes Included | Point Style | For Use On | Each | |
Letter | |||||
---|---|---|---|---|---|
Uncoated High-Speed Steel | |||||
26 | A-Z | Standard | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 000000000 | 0000000 |
Hardened Undersized High-Speed M2 Tool Steel Rod Sets

- Hardness: Rockwell C60 (Very Hard)
- Yield Strength: Not Rated
Supplied in a metal index case with fold-out panels, these rods, also known as drill blanks, have an undersized diameter for machining your own jobbers'-length drill bits. They are 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.
Includes | Number of Pieces | Dia. Tolerance | Mechanical Finish | Straightness Tolerance | Each | |
Sizes A-Z and a metal index case | 26 | -0.0002" to 0" | Precision Ground | 0.012" per ft. | 000000 | 0000000 |