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 | ||||||
| 13 | 1/16"-1/4" (increments of 1/64") | Split | NAS907 Type B | Steel, Iron, Stainless Steel | 0000000 | 000000 |
Titanium-Nitride (TiN) Coated High-Speed Steel | ||||||
| 13 | 1/16"-1/4" (increments of 1/64") | Split | NAS907 Type B | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 00000000 | 00000 |
Titanium-Aluminum-Nitride (TiAlN) Coated High-Speed Steel | ||||||
| 13 | 1/16"-1/4" (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 | ||||||
| 13 | 1/16"-1/4" (increments of 1/64") | Standard | ASME B94.11M, DIN 338 | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
Metric | ||||||
Black-Oxide High-Speed Steel | ||||||
| 13 | 1.0-7.0 mm (increments of 0.5 mm) | Standard | DIN 338 | Steel, Iron, Stainless Steel | 0000000 | 00000 |
Black-and-Gold-Oxide High-Speed Steel | ||||||
| 13 | 1.0 mm and 1.5 mm 2.0-7.0 mm (increments of 0.5 mm) | Split | NAS907 Type B | Steel, Iron, Stainless Steel | 00000000 | 00000 |
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 | ||||||
| 13 | 1/16"-1/4" (increments of 1/64") | Split | NAS907 Type J | Steel, Hardened Steel, Iron, Stainless Steel, Nickel | 0000000 | 000000 |
Titanium-Nitride (TiN) Coated Cobalt Steel | ||||||
| 13 | 1/16"-1/4" (increments of 1/64") | Split | NAS907 Type J | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
Metric | ||||||
Uncoated Cobalt Steel | ||||||
| 13 | 1.0 mm and 1.5mm, 2.0-7.0 mm (increments of 0.5 mm) | Split | NAS907 Type J | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 00000000 | 00000 |
Carbide-Tipped Drill Bit Sets
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. All are jobbers’ length so they 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 Carbide-Tipped Steel | |||||
| 13 | 1/8"-1/2" (increments of 1/32") | Standard | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 0000000 | 0000000 |
Flat-Blade Drill Bit Sets for Wood
Also known as spade bits, these have a centering point and two cutting edges for boring holes in hard and soft wood.
For technical drawings and 3-D models, click on a part number.
| Number of Pieces | Drill Bit Sizes Included | Shank Type | Shank Size | Point Style | For Use On | Each | |
Inch | |||||||
|---|---|---|---|---|---|---|---|
Uncoated Steel | |||||||
| 13 | 1/4"-1" (increments of 1/16") | Quick-Change Hex | 1/4" | Standard | Wood | 0000000 | 000000 |
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 | |||||
| 13 | 1/16"-1/4" (increments of 1/64") | Standard | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 000000000 | 000000 |
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.
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.
| 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 | |||||||||
|---|---|---|---|---|---|---|---|---|---|
| 13 | Plug | 1 each of sizes: 4-40 6-32 8-32 10-24 10-32 1/4"-20 | 3, 4 | 43 ga. 35 ga. 29 ga. 25 ga. 21 ga. 7 ga. | Black Oxide High-Speed Steel | Plastic Case | Tap Wrench | 0000000 | 000000 |
Hex-Shank Tap and Drill Bit Sets for Drills and Screwdrivers
All taps and drill bits have a hex shank for direct connection to tools such as drills and power screwdrivers. They're made of high-speed steel and are for use on most metal and plastic. Taps have a plug chamfer with 3-5 chamfered cutting threads, so they're suitable for start-to-finish tapping, but they’ll need space at the bottom of closed-end holes for chips to accumulate.
| No. of Pieces | Chamfer Type | Tap Sizes Included | Overall Lg. | No. of Flutes | Drill Bit Sizes Included | Drill Bit Material | Container Type | Includes | Each | |
Uncoated High-Speed Steel | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 13 | Plug | M3 × 0.5 mm M4 × 0.7 mm M5 × 0.8 mm M6 × 1.0 mm M8 × 1.25 mm M10 × 1.5 mm | 1 19/64" 1 27/64" 1 35/64" 1 37/64" | 3, 4 | 2.5 mm 3.3 mm 4.2 mm 5.0 mm 6.8 mm 8.5 mm | Uncoated High-Speed Steel | Plastic Case | Chuck | 0000000 | 0000000 |