System of Measurement System of Measurement |
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For Use On For Use On |
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Length Class Length Class |
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 | Jobbers' Length |
Material Material |
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Finish Finish |
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Shank Type Shank Type |
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Bit Style Bit Style |
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 | Spiral Flute |
Individual/Set Individual/Set |
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Overall Length Overall Length | Show |
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Overall Length Overall Length | Hide |
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Flute Direction Flute Direction |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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For Drill Bit Size Decimal Equivalent For Drill Bit SizeDecimal Equivalent |
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Specifications Met Specifications Met |
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Drill Bit Decimal Size Equivalents
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About Countersinks
Countersinks cut a cone-shaped opening to install screws and rivets flush with a surface or hold workpieces between centers on a lathe. They can also be used for chamfering and deburring.
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About Drill Bits
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Drill Bits
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.
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 | |
Inch | |||||||||
Black-Oxide High-Speed Steel | |||||||||
| 19/32" | 0.5938" | 7 1/8" | 4.29" | Round | 19/32" | Standard | Steel, Iron, Stainless Steel | 0000000 | 000000 |
| 39/64" | 0.6094" | 7 1/8" | 4.27" | Round | 39/64" | Standard | Steel, Iron, Stainless Steel | 0000000 | 00000 |
| 5/8" | 0.625" | 7 1/8" | 4.25" | Round | 5/8" | Standard | Steel, Iron, Stainless Steel | 0000000 | 00000 |
| 41/64" | 0.6406" | 7 1/8" | 4.22" | Round | 41/64" | Standard | Steel, Iron, Stainless Steel | 0000000 | 00000 |
| 21/32" | 0.6563" | 7 1/8" | 4.2" | Round | 21/32" | Standard | Steel, Iron, Stainless Steel | 0000000 | 00000 |
Titanium-Nitride (TiN) Coated High-Speed Steel | |||||||||
| 19/32" | 0.5938" | 7 1/8" | 4.29" | Round | 19/32" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
| 39/64" | 0.6094" | 7 1/8" | 4.27" | Round | 39/64" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
| 5/8" | 0.625" | 7 1/8" | 4.25" | Round | 5/8" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
| 41/64" | 0.6406" | 7 1/8" | 4.22" | Round | 41/64" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
| 21/32" | 0.6563" | 7 1/8" | 4.2" | Round | 21/32" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
Uncoated High-Speed Steel | |||||||||
| 19/32" | 0.5938" | 7 1/8" | 4.29" | Round | 19/32" | Standard | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
| 39/64" | 0.6094" | 7 1/8" | 4.27" | Round | 39/64" | Standard | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
| 5/8" | 0.625" | 7 1/8" | 4.25" | Round | 5/8" | Standard | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
| 41/64" | 0.6406" | 7 1/8" | 4.22" | Round | 41/64" | Standard | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
| 21/32" | 0.6563" | 7 1/8" | 4.2" | Round | 21/32" | Standard | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
Cobalt Steel Drill Bits
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 | Specifications Met | For Use On | Each | |
Inch | ||||||||||
Uncoated Cobalt Steel | ||||||||||
| 19/32" | 0.5938" | 7 1/8" | 4.2" | Round | 19/32" | Split | NAS907 Type J | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 000000 |
| 39/64" | 0.6094" | 7 1/8" | 4.2" | Round | 39/64" | Split | NAS907 Type J | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
| 5/8" | 0.625" | 7 1/8" | 4.2" | Round | 5/8" | Split | NAS907 Type J | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
| 41/64" | 0.6406" | 7 1/8" | 4.2" | Round | 41/64" | Split | NAS907 Type J | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
| 21/32" | 0.6563" | 7 1/8" | 4.2" | Round | 21/32" | Split | NAS907 Type J | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
| 43/64" | 0.6719" | 7 1/8" | 4.6" | Round | 43/64" | Split | NAS907 Type J | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
| 11/16" | 0.6875" | 7 1/8" | 4.6" | Round | 11/16" | Split | NAS907 Type J | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
Titanium-Nitride (TiN) Coated Cobalt Steel | ||||||||||
| 19/32" | 0.5938" | 7 1/8" | 5.19" | Round | 19/32" | Split | NAS907 Type J | Steel, Hardened Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 000000000 | 00000 |
| 39/64" | 0.6094" | 7 1/8" | 5.19" | Round | 39/64" | Split | NAS907 Type J | Steel, Hardened Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 000000000 | 00000 |
| 5/8" | 0.625" | 7 1/8" | 5.19" | Round | 5/8" | Split | NAS907 Type J | Steel, Hardened Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 000000000 | 00000 |
| 41/64" | 0.6406" | 7 1/8" | 5.19" | Round | 41/64" | Split | NAS907 Type J | Steel, Hardened Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 000000000 | 00000 |
| 21/32" | 0.6563" | 7 1/8" | 5.19" | Round | 21/32" | Split | NAS907 Type J | Steel, Hardened Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 000000000 | 00000 |
Drill Bit Cases
Store and organize drill bits so they stay in good working condition and don't go missing. These cases have individually marked holes for each size in your set.
Steel cases have stands that fold in and out. Stand them up when you need them, then fold them back into the slim case for storage inside a workbench drawer.
For Drill Bit | Overall | |||||
|---|---|---|---|---|---|---|
| No. of | Size | Lg. | Wd. | Ht. | Each | |
For Metric Drill Bits | ||||||
For Jobbers' Length Class | ||||||
| 41 | 6.0-10.0 mm (increments of 0.1 mm) | 7 1/8" | 4 1/2" | 2 1/2" | 0000000 | 000000 |
Countersinking Drill Bits for Screws
Also known as step drill bits, these bits countersink as they drill. The 82° countersink angle is compatible with the profile of flat- and oval-head inch screws. After multiple sharpenings, the drill bit diameter may become smaller.
For technical drawings and 3-D models, click on a part number.
Dia. | Lg. | 82° Countersink Angle | |||||||
|---|---|---|---|---|---|---|---|---|---|
| For Screw Size | Body | Step | Step | Overall | Shank Dia. | Point Angle | For Use On | Each | |
Uncoated High-Speed Steel | |||||||||
2 Flute | |||||||||
| 5/16" | 0.625" | 0.320" | 3/4" | 7 1/8" | 0.6250" | 118° | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
Counterboring Drill Bits
Often called step drill bits, these drill and counterbore holes at the same time. After drilling and counterboring, tap the hole and install your fastener. The body diameter may decrease after multiple sharpenings.
For technical drawings and 3-D models, click on a part number.
Dia. | Lg. | |||||||
|---|---|---|---|---|---|---|---|---|
| For Screw Size | Body | Step | Step | Overall | Point Angle | For Use On | Each | |
Uncoated High-Speed Steel | ||||||||
| 3/8" | 0.594" | 0.406" | 7/8" | 7 1/8" | 118° | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel | 0000000 | 000000 |
Clamp-On Drill Guides
Drill precise holes without building a fixture. Clamp the jig onto your material and lift and turn the turret to select the hole size you need. Use the graduations to set the jig to the centerline of your workpiece.
| For Drill Bit Size | For Drill Bit Size Decimal Equivalent | Max. Opening Wd. | Lg. | Wd. | Ht. | Material | Each | |
| 3/16", 1/4", 5/16", 3/8", 7/16", 1/2" | 0.1875", 0.25", 0.3125", 0.375", 0.4375", 0.5" | 4" | 7 1/8" | 3 1/2" | 2 1/8" | Steel and Nylon Plastic | 0000000 | 000000 |