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System of Measurement System of Measurement |
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Size Size | Show |
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Size Size | Hide |
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Decimal Size Equivalent Decimal Size Equivalent |
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Shank Type Shank Type |
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| Reduced Round | Morse Taper |
For Use On For Use On |
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Material Material |
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Flute Direction Flute Direction |
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| Right Hand |
Point Angle Point Angle |
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Point Style Point Style |
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| Standard |
Bit Style Bit Style |
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 | Spiral Flute |
Finish Finish |
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Individual/Set Individual/Set |
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Length Class Length Class |
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| Reduced Shank Length |
Morse Taper Diameter Morse Taper Diameter |
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Morse Taper Number Morse Taper Number |
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Drill Bit Decimal Size Equivalents
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About Drill Bits
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1/2" Diameter Reduced-Shank Drill Bits
Black Oxide
Black Oxide with Flats on Shank
The shank has a smaller diameter than the tip, allowing you to drill large holes with machines that have small-capacity chucks. Also known as Silver and Deming bits, they have a 1/2” diameter shank.
Drill bits with flats on shank have three flat sides to prevent the bit from slipping in the drill chuck.
Shank | |||||||||
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| Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | For Use On | Point Style | Each | |
Drill Bits | |||||||||
Inch | |||||||||
Black-Oxide High-Speed Steel | |||||||||
| 1 11/32" | 1.3438" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 0000000 |
Drill Bits with Flats on Shank | |||||||||
Inch | |||||||||
Black-Oxide High-Speed Steel | |||||||||
| 1 11/32" | 1.3438" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 00000000 | 000000 |
High-Speed Steel 3/4" Diameter Reduced-Shank Drill Bits
The shank has a smaller diameter than the tip, allowing you to drill large holes with machines that have small-capacity chucks.
Shank | |||||||||
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| Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | |
Inch | |||||||||
Black-Oxide High-Speed Steel | |||||||||
| 1 11/32" | 1.3438" | 6" | 2.1" | Reduced Round | 3/4" | Standard | Steel, Iron, Stainless Steel | 0000000 | 0000000 |
High-Speed Steel Morse Taper-Shank Drill Bits
Install the Morse taper shank directly into the tapered spindle on machines such as drill presses and lathes.
Morse Taper | ||||||||||
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| Size | Decimal Size Equivalent | No. | Dia. | Overall Lg. | Max. Drilling Dp. | Shank Type | Point Style | For Use On | Each | |
Inch | ||||||||||
Black-Oxide High-Speed Steel | ||||||||||
| 1 11/32" | 1.3438" | 4 | 1.231" | 14 3/8" | 6.73" | Morse Taper | Standard | Steel, Iron, Stainless Steel | 00000000 | 0000000 |