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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Point Style Point Style |
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| Standard |
Bit Style Bit Style |
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 | Parabolic 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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Drill Bit Size Drill Bit Size |
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Maximum Hole Drilling Depth Maximum Hole Drilling Depth |
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Body Diameter Body Diameter |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Number of Flutes Number of Flutes |
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 | 2 |
Maximum Drilling Depth Maximum Drilling Depth |
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Flute Direction Flute Direction |
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| Right Hand |
About Drill Bits
More
Drill Bit Decimal Size Equivalents
More
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.
More
Chip-Clearing Carbide Drill Bits
The parabolic spiral flutes lift chips out of the hole, reducing clogging and improving coolant flow. For the highest accuracy and longest tool life, these solid-carbide bits 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.
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 | |||||||||
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| Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | |
Inch—Parabolic Spiral Flute | |||||||||
Uncoated Carbide | |||||||||
| 9/64" | 0.1406" | 2 29/32" | 1.56" | Round | 9/64" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
Titanium-Nitride (TiN) Coated Carbide | |||||||||
| 9/64" | 0.1406" | 2 29/32" | 1.56" | Round | 9/64" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 0000000 | 00000 |
Wire Gauge—Parabolic Spiral Flute | |||||||||
Uncoated Carbide | |||||||||
| 29 ga | 0.136" | 2 29/32" | 1.56" | Round | 0.1358" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
| 28 ga | 0.1405" | 2 29/32" | 1.56" | Round | 0.1406" | Standard | Steel, Iron, Stainless Steel, Aluminum, Brass, Bronze, Plastic | 00000000 | 00000 |
Titanium-Nitride (TiN) Coated Carbide | |||||||||
| 29 ga | 0.136" | 2 29/32" | 1.56" | Round | 0.1358" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 0000000 | 00000 |
| 28 ga | 0.1405" | 2 29/32" | 1.56" | Round | 0.1406" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
Drill-Bit Countersinks with Drill Bit
These countersinks come attached to a high-speed steel jobbers’ bit for drilling and countersinking at the same time. They have a hex shank that fits in all quick-change and standard drill chucks. The bit is held in place with a set screw and can be adjusted up to 1” for different screw lengths. The 82° countersink angle is compatible with the profile of flat- and oval-head inch screws.
For technical drawings and 3-D models, click on a part number.
Countersinks | |||||||||||
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For Screw Size | Replacement Drill Bits | ||||||||||
| Hard Wood | Soft Wood | Drill Bit Size | Body Dia. | Shank Size | Overall Lg. | Max. Hole Drilling Dp. | For Use On | Each | Each | ||
Uncoated High-Speed Steel | |||||||||||
2 Flute | |||||||||||
| No. 8 | No. 10 | 1/8" | 1/2" | 1/4" | 2 29/32" | 1" | Aluminum, Brass, Bronze, Iron, Plastic, Stainless Steel, Steel, Wood | 0000000 | 00000 | 0000000 | 00000 |