About Tool Steel
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Drill Bit Decimal Size Equivalents
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About Drill Bits
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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 | |
Inch | ||||||
---|---|---|---|---|---|---|
Black-Oxide High-Speed Steel | ||||||
29 | 1/16"-1/2" (increments of 1/64") | Split | NAS907 Type B | Steel, Iron, Stainless Steel | 0000000 | 0000000 |
Titanium-Nitride (TiN) Coated High-Speed Steel | ||||||
29 | 1/16"-1/2" (increments of 1/64") | 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 | ||||||
29 | 1/16"-1/2" (increments of 1/64") | Split | NAS907 Type B | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 0000000 | 000000 |
Uncoated High-Speed Steel | ||||||
29 | 1/16"-1/2" (increments of 1/64") | Standard | __ | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
Maintenance-Length Drill Bit Sets
Also known as mechanics’ bits, these are shorter and more rigid than jobbers' bits but longer than short-length bits. A split point keeps the bit centered without a pilot hole. Their shanks have three flat sides to prevent the bit from slipping in the drill chuck.
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 | |
Inch | |||||
---|---|---|---|---|---|
Black-and-Gold-Oxide High-Speed Steel | |||||
29 | 1/16"-1/2" (increments of 1/64") | Split | Steel, Iron, Stainless Steel | 00000000 | 0000000 |
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.
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.
Number of Pieces | Drill Bit Sizes Included | Point Style | Specifications Met | For Use On | Each | |
Inch | ||||||
---|---|---|---|---|---|---|
Black-Oxide High-Speed Steel | ||||||
29 | 1/16"-1/2" (increments of 1/64") | Split | NAS907 Type C | Steel, Iron, Stainless Steel | 0000000 | 0000000 |
Titanium-Nitride (TiN) Coated High-Speed Steel | ||||||
29 | 1/16"-1/2" (increments of 1/64") | Split | NAS907 Type C | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
Uncoated High-Speed Steel | ||||||
29 | 1/16"-1/2" (increments of 1/64") | Standard | __ | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
Chip-Clearing Drill Bit Sets
Designed to lift chips out of the hole, these bits reduce clogging and improve coolant flow. They’re jobbers’ length, so they have the rigidity and length required for most applications. A split point keeps the bit centered without a pilot hole.
Parabolic spiral flute drill bits have wider flutes for more efficient chip evacuation than spiral flute drill bits.
Titanium-nitride (TiN) coated drill bits last longer and can drill at higher speeds than black-oxide 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 | |
Inch—Parabolic Spiral Flute | |||||
---|---|---|---|---|---|
Black-Oxide High-Speed Steel | |||||
29 | 1/16"-1/2" (increments of 1/64") | Split | Steel, Iron, Stainless Steel | 0000000 | 0000000 |
Titanium-Nitride (TiN) Coated High-Speed Steel | |||||
29 | 1/16"-1/2" (increments of 1/64") | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
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.
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.
Number of Pieces | Drill Bit Sizes Included | Point Style | Specifications Met | For Use On | Each | |
Inch | ||||||
---|---|---|---|---|---|---|
Uncoated Cobalt Steel | ||||||
29 | 1/16"-1/2" (increments of 1/64") | Split | NAS907 Type J | Steel, Hardened Steel, Iron, Stainless Steel, Nickel | 0000000 | 0000000 |
Titanium-Nitride (TiN) Coated Cobalt Steel | ||||||
29 | 1/16"-1/2" (increments of 1/64") | Split | NAS907 Type J | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 000000 |
Short-Flute Cobalt Steel Drill Bit Sets
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.
Number of Pieces | Drill Bit Sizes Included | Point Style | Specifications Met | For Use On | Each | |
Inch | ||||||
---|---|---|---|---|---|---|
Black-Oxide Cobalt Steel | ||||||
29 | 1/16"-1/2" (increments of 1/64") | Split | NAS907 Type D | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium | 00000000 | 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 | |
Inch | |||||
---|---|---|---|---|---|
Uncoated Cobalt Steel | |||||
29 | 1/16"-1/2" (increments of 1/64") | Split | Steel, Hardened Steel, Iron, Stainless Steel, Nickel | 0000000 | 0000000 |
1/4" Diameter Reduced-Shank Drill Bit Sets
The shank has a smaller diameter than the tip, allowing you to drill large holes with machines that have small-capacity chucks.
For technical drawings and 3-D models, click on a part number.
Number of Pieces | Material | Drill Bit Sizes Included | Shank Size | Point Style | For Use On | Each | |
Inch | |||||||
---|---|---|---|---|---|---|---|
29 | Black-Oxide High-Speed Steel Uncoated High-Speed Steel | 1/16"-1/4" (increments of 1/64") 17/64"-1/2" (increments of 1/64") | 1/4" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 0000000 |
3/8" Diameter Reduced-Shank Drill Bit Sets
The shank has a smaller diameter than the tip, allowing you to drill large holes with machines that have small-capacity chucks.
For technical drawings and 3-D models, click on a part number.
Number of Pieces | Drill Bit Sizes Included | Shank Size | Point Style | For Use On | Each | |
Inch | ||||||
---|---|---|---|---|---|---|
Uncoated High-Speed Steel | ||||||
29 | 1/16"-1/2" (increments of 1/64") | 3/8" | Standard | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 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 | |
Inch | |||||
---|---|---|---|---|---|
Uncoated High-Speed Steel | |||||
29 | 1/16"-1/2" (increments of 1/64") | Standard | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 00000000 | 0000000 |
Tap and Drill Bit Sets
Drill and tap a variety of hole sizes. These taps and drill bits are for use on metal and plastic.
Carbon steel taps are for thread repair and occasional tapping.
High-speed steel taps and drill bits have a longer tool life than carbon steel. Uncoated high-speed steel taps and drill bits are strong enough for most jobs but don’t last as long as other high-speed steel taps and drill bits. Use them for small-scale jobs.
Taper-chamfer taps have 7-10 chamfered threads at the tip for cutting into the workpiece. They require less torque than other chamfer types, making them a good choice for starting threads and tapping through holes. However, a longer taper means that they cannot thread as close to the bottom of closed-end holes.
Plug-chamfer taps are a versatile choice for most tapping applications. With 3-5 chamfered cutting threads, they require moderate torque and are often used for start-to-finish tapping of through holes and closed-end holes. However, they do not start threads as easily as taper chamfers. When using them to tap closed-end holes, be sure to leave sufficient space at the bottom for chips to accumulate.
Bottoming-chamfer taps cut into the workpiece with just 1-2 chamfered threads. This short chamfer lets them thread holes closer to the bottom than other taps, but they require more torque to start threads.
No. of Pieces | Chamfer Type | Tap Sizes Included | No. of Flutes | Drill Bit Sizes Included | Drill Bit Material | Container Type | Includes | Each | |
Uncoated Carbon Steel Taps | |||||||||
---|---|---|---|---|---|---|---|---|---|
29 | Taper, Plug, Bottoming | 3 each of sizes: M3 × 0.50 mm M4 × 0.70 mm M5 × 0.80 mm M6 × 1.00 mm M8 × 1.25 mm M10 × 1.50 mm M12 × 1.75 mm | 3, 4 | 2.5 mm 3.3 mm 4.2 mm 5.0 mm 6.8 mm 8.5 mm 10.2 mm | Black Oxide High-Speed Steel | Metal Case | Tap Wrench | 0000000 | 0000000 |
Uncoated High-Speed Steel Taps | |||||||||
29 | Taper, Plug, Bottoming | 3 each of sizes: M3 × 0.50 mm M4 × 0.70 mm M5 × 0.80 mm M6 × 1.00 mm M8 × 1.25 mm M10 × 1.50 mm M12 × 1.75 mm | 3, 4 | 2.5 mm 3.3 mm 4.2 mm 5.0 mm 6.8 mm 8.5 mm 10.2 mm | Black Oxide High-Speed Steel | Metal Case | Tap Wrench | 0000000 | 000000 |
Bit Assortments
These assortments contain general-purpose bits.
Hex shank bits (also known as insert bits) are used in hand drivers or with a bit adapter in power tools.
No. of Pieces | Components Included | Bits Included | Adapters Included | Drive Tools Included | Each | |
1/4" Hex Shank Size—Steel | ||||||
---|---|---|---|---|---|---|
29 | 26 Bits 2 Adapters 1 Drive Tool | Hex (Inch): 1/16", 5/64", 3/32", 7/64", 1/8", 9/64", 5/32" 3/16", 7/32", 1/4", 5/16", 3/8" (1" O'all Lg.)—1 ea. Hex (Metric): 2 mm, 2.5 mm, 3 mm, 4 mm 5 mm, 6 mm, 8 mm (1" O'all Lg.)—1 ea. Phillips: No. 1, No. 3 (1" O'all Lg.)—1 ea. Phillips: No. 2 (1" O'all Lg.)—2 ea. Slotted: 3/16", 1/4", 9/32" (1" O'all Lg.)—1 ea. | 1/4" Male Square Drive × 1/4" Hex Shank Adapter 2 1/8" Lg. Bit Adapter for Power Tools | 7 3/4" Lg. Bit Screwdriver | 00000000 | 000000 |
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 1 /16"-1/2" (x1/64ths increments) and a metal index case | 29 | -0.0002" to 0" | Precision Ground | 0.012" per ft. | 000000 | 0000000 |