System of Measurement System of Measurement |
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Decimal Size Equivalent Decimal Size Equivalent | Show |
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Decimal Size Equivalent Decimal Size Equivalent | Hide |
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For Use On For Use On |
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Shank Type Shank Type |
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| Round | Reduced Round |
Length Class Length Class |
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| Reduced Shank Length |
Point Style Point Style |
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| Standard |
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| Carbide Insert |
Material Material |
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Bit Style Bit Style |
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 | Spiral Flute |
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Individual/Set Individual/Set |
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Flute Direction Flute Direction |
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| Right Hand |
DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement)  |
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Finish Finish |
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RoHS (Restriction of Hazardous Substances) RoHS (Restriction ofHazardous Substances) |
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REACH (Registration, Evaluation, Authorization and Restriction of Chemicals) REACH (Registration,Evaluation, Authorization and Restriction of Chemicals) |
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Number of Coolant Holes Number of Coolant Holes |
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Drill Bit Decimal Size Equivalents
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About Drill Bits
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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.
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 | |||||||||
Black-Oxide High-Speed Steel | |||||||||
| 1 5/8" | 1.625" | 6" | 2.1" | Reduced Round | 3/4" | Standard | Steel, Iron, Stainless Steel | 0000000 | 0000000 |
Smooth-Finish Drill Bits for Wood
Bore clean, flat bottom holes in soft wood, veneer, and laminates. The center guide point prevents the bit from wandering. Also known as Forstner bits.
Carbide-tipped steel drill bits maintain their sharp edges longer than alloy tool steel bits, and can cut through tough, abrasive material such as plywood, hard wood, and composites.
For technical drawings and 3-D models, click on a part number.
Fast-Cutting Smooth-Finish Drill Bits for Wood
Multiple outlining teeth bore clean, flat-bottom holes without chipping or splintering your surface—even when cutting across the grain. These bits are excellent for boring straight holes, overlapping holes, and holes on close centers in soft wood, veneer, and laminates. The center guide point prevents the bit from wandering. Also known as multispur bits or Forstner 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 | Each | |
Inch | ||||||||
Uncoated Steel | ||||||||
| 1 5/8" | 1.625" | 6" | 4" | Round | 1/2" | Standard | 0000000 | 000000 |
Replaceable Carbide-Insert Drill Bits
Use these bits to drill a large number of holes with high precision. When the cutting edges dull, replace the carbide inserts (sold separately) instead of the entire bit. Each drill bit requires two inserts—one on the inner cutting edge and one on the outer cutting edge. Bits can be used in CNC machines with coolant-through technology; holes in the bit allow coolant to be channeled through the tool for more efficient chip evacuation.
For technical drawings and 3-D models, click on a part number.
Drill Bits | ||||||||||||
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For Insert Inscribed Circle Dia. (IC) | Shank | Replacement Screws | ||||||||||
| Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Inner | Outer | For Use On | Type | Size | Each | Each | ||
Steel | ||||||||||||
| 1 5/8" | 1.625" | 9" | 4.88" | 0.486" | 0.498" | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Aluminum, Brass, Bronze, Fiberglass, Plastic | Round | 1 1/2" | 0000000 | 0000000 | 0000000 | 00000 |
| 1 5/8" | 1.625" | 12 1/4" | 8.13" | 0.486" | 0.498" | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Aluminum, Brass, Bronze, Fiberglass, Plastic | Round | 1 1/2" | 0000000 | 000000 | 0000000 | 0000 |
| For Drill Bit Size | Inscribed Circle Dia. (IC) | Thick. | Hole Dia. | Tip Radius | For Use On | Features | Each | |
Titanium-Aluminum-Nitride (TiAlN) Coated Carbide | ||||||||
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| 1 1/2", 1 5/8" | 0.486" | 5/32" | 3/16" | 1/32" | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Aluminum, Brass, Bronze, Fiberglass, Plastic | Chip Breakers | 0000000 | 000000 |
| For Drill Bit Size | Inscribed Circle Dia. (IC) | Thick. | Hole Dia. | Tip Radius | For Use On | Features | Each | |
Titanium-Nitride (TiN) Coated Carbide | ||||||||
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| 1 1/2", 1 5/8" | 0.498" | 5/32" | 3/16" | 3/64" | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Aluminum, Brass, Bronze, Plastic | Chip Breakers | 0000000 | 000000 |