System of Measurement System of Measurement |
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For Use On For Use On |
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Material Material |
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Length Class Length Class |
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| Jobbers' Length |
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| Extended Length |
Shank Type Shank Type |
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 | Round |
Maximum Drilling Depth Maximum Drilling Depth | Show |
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Maximum Drilling Depth Maximum Drilling Depth | Hide |
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Flute Direction Flute Direction |
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| Right Hand |
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| Left Hand |
Bit Style Bit Style |
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 | Spiral Flute |
Individual/Set Individual/Set |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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Finish Finish |
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Drill Bit Decimal Size Equivalents
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About Drill Bits
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Short-Flute Extended-Length Cobalt Steel Drill Bits
The short flutes provide increased rigidity for drilling straighter holes and the long length lets you access hard-to-reach spots. With better heat and wear resistance than high-speed steel, these cobalt steel bits 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.
Shank | 6" Overall Lg. | ||||||||
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| Size | Decimal Size Equivalent | Max. Drilling Dp. | Type | Size | Point Style | Specifications Met | For Use On | Each | |
Wire Gauge | |||||||||
Uncoated Cobalt Steel | |||||||||
| 27 ga | 0.144" | 1.58" | Round | 0.144" | Split | NAS907 Type J | Steel, Hardened Steel, Iron, Stainless Steel, Nickel | 00000000 | 00000 |
| 26 ga | 0.147" | 1.58" | Round | 0.147" | Split | NAS907 Type J | Steel, Hardened Steel, Iron, Stainless Steel, Nickel | 00000000 | 0000 |
Nonsparking Drill Bits
Drill safely in flammable environments. Made of Factory Mutual (FM) approved beryllium copper, these bits won’t create sparks that could ignite if they made contact with combustible vapors or residues. These drill bits help you meet OSHA requirements in areas such as mines, refineries, and chemical plants where flammable materials are present.
Do not use these bits in direct contact with acetylene. Dust from beryllium copper can be toxic, so don't grind or sharpen them.
Shank | ||||||||||
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| Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | Specifications Met | For Use On | Each | |
Inch | ||||||||||
Uncoated Beryllium Copper | ||||||||||
| 1/4" | 0.25" | 3 15/16" | 1.58" | Round | 1/4" | Standard | FM Approved | Aluminum, Copper, Brass, Fiberglass, Plastic | 00000000 | 0000000 |
Drill Bits for Aluminum, Brass, and Bronze
Because softer metal, like aluminum, brass, and bronze, can clog a bit, the flutes on these bits lift chips out of the hole. Also known as slow-spiral drill bits. They 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.
High-Speed Steel Left-Hand Drill Bits
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.
Shank | |||||||||
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| Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | |
Wire Gauge | |||||||||
Uncoated High-Speed Steel | |||||||||
| 27 ga | 0.144" | 3" | 1.58" | Round | 0.144" | Standard | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 00000000 | 00000 |
| 26 ga | 0.147" | 3" | 1.58" | Round | 0.147" | Standard | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 00000000 | 0000 |