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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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Drill Bit Decimal Size Equivalents
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About Drill Bits
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Extended-Length Drill Bits



Access hard-to-reach spots and drill deep holes.
Black-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 black-oxide drill bits.
For technical drawings and 3-D models, click on a part number.
Shank | |||||||||
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Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | |
Inch | |||||||||
Black-Oxide High-Speed Steel | |||||||||
25/64" | 0.3906" | 7" | 3.78" | Round | 25/64" | Standard | Steel, Iron, Stainless Steel | 000000000 | 000000 |
13/32" | 0.4063" | 7" | 3.76" | Round | 13/32" | Standard | Steel, Iron, Stainless Steel | 000000000 | 00000 |
Titanium-Nitride (TiN) Coated High-Speed Steel | |||||||||
25/64" | 0.3906" | 7" | 4.38" | Round | 25/64" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 000000000 | 00000 |
13/32" | 0.4063" | 7" | 4.38" | Round | 13/32" | Standard | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 000000000 | 00000 |
Uncoated High-Speed Steel | |||||||||
25/64" | 0.3906" | 7" | 4.38" | Round | 25/64" | Standard | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
Letter | |||||||||
Black-Oxide High-Speed Steel | |||||||||
V | 0.377" | 7" | 3.81" | Round | 0.377" | Standard | Steel, Iron, Stainless Steel | 0000000 | 00000 |
W | 0.386" | 7" | 3.79" | Round | 0.386" | Standard | Steel, Iron, Stainless Steel | 0000000 | 00000 |
X | 0.397" | 7" | 3.78" | Round | 0.397" | Standard | Steel, Iron, Stainless Steel | 0000000 | 00000 |
Y | 0.404" | 7" | 3.76" | Round | 0.404" | Standard | Steel, Iron, Stainless Steel | 0000000 | 00000 |
Extended-Length Cobalt Steel Drill Bits

Access hard-to-reach spots and drill deep holes. 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. The split point keeps the bit centered without a pilot hole.
For technical drawings and 3-D models, click on a part number.
Shank | |||||||||
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Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | |
Inch | |||||||||
Uncoated Cobalt Steel | |||||||||
25/64" | 0.3906" | 7" | 3.59" | Round | 25/64" | Split | Steel, Hardened Steel, Iron, Stainless Steel, Nickel | 00000000 | 000000 |
Extended-Length Carbide-Tipped Drill Bits

Access hard-to-reach spots and drill deep holes. More wear resistant than cobalt steel and high-speed steel, these carbide-tipped bits maintain a sharper, harder edge at high temperatures for excellent performance on abrasive material, such as plastic. Because they aren’t as brittle as solid carbide bits, they can be used in less rigid setups, such as a hand-held drill.
For technical drawings and 3-D models, click on a part number.
Shank | |||||||||
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Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | |
Inch | |||||||||
Uncoated Carbide-Tipped Steel | |||||||||
13/32" | 0.4063" | 7" | 3.56" | Round | 13/32" | Standard | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 00000000 | 000000 |
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.
For technical drawings and 3-D models, click on a part number.
Morse Taper | ||||||||||
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Drill Bit 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 | ||||||||||
13/32" | 0.4063" | 1 | 0.475" | 7" | 3.01" | Morse Taper | Standard | Steel, Iron, Stainless Steel | 00000000 | 000000 |
SDS-Plus-Shank Masonry Drill Bits for Tapping Screw Installation


Each bit is precisely sized to match the tolerances necessary to achieve maximum holding strength from tapping screws. The SDS-Plus shank has two deep slots and two shallow slots for use with SDS-Plus-drive rotary hammers. These bits cannot be used with SDS-Max-drive rotary hammers.
For technical drawings and 3-D models, click on a part number.
For Screw Size | Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Shank Type | Point Style | For Use On | Each | |
Inch | |||||||||
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Uncoated Carbide-Tipped Steel | |||||||||
3/16" | 5/32" | 0.1563" | 7" | 4" | SDS Plus | Standard | Masonry, Concrete | 000000 | 000000 |
Carbide-Tipped Drill Bits for Hardened Steel

The straight flutes and notched point withstand the heavy pressure necessary to penetrate hard steel. These carbide-tipped bits maintain their sharp edges when drilling abrasive material. Because they aren’t as brittle as solid carbide bits, they can be used in less rigid setups, such as a hand-held drill. They are jobbers' length and have the rigidity and length required for most hand-held drilling and machine tool applications.
For technical drawings and 3-D models, click on a part number.
Shank | |||||||||
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Drill Bit Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Max. Hardness | Each | |
Inch | |||||||||
Uncoated Carbide-Tipped Steel | |||||||||
5/8" | 0.625" | 7" | 2.5" | Round | 5/8" | Notched | Rockwell C60 | 0000000 | 000000 |
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 technical drawings and 3-D models, click on a part number.

For Drill Bit | Overall | |||||
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No. of | Size | Lg. | Wd. | Ht. | Each | |
For Inch Drill Bits | ||||||
For Jobbers' Length Class | ||||||
15 | 1/16"-1/2" (increments of 1/32") | 7" | 4" | 1 1/4" | 0000000 | 000000 |
29 | 1/16"-1/2" (increments of 1/64") | 7" | 4" | 1 3/4" | 0000000 | 00000 |
For Short Length Class | ||||||
29 | 1/16"-1/2" (increments of 1/64") | 7" | 4" | 1 3/4" | 0000000 | 00000 |
For Letter Drill Bits | ||||||
For Jobbers' Length Class | ||||||
26 | A-Z | 7" | 4" | 1 3/4" | 0000000 | 00000 |
For Short Length Class | ||||||
26 | A-Z | 7" | 4" | 1 3/4" | 0000000 | 00000 |
For Metric Drill Bits | ||||||
For Jobbers' Length Class | ||||||
25 | 1.0-13.0 mm (increments of 0.5 mm) | 7" | 4" | 1 3/4" | 0000000 | 00000 |
For Inch, Wire Gauge, Letter Drill Bits | ||||||
For Jobbers' Length Class | ||||||
19 | 1/16", 1/2", 1/4", 1/8", 21 ga, 25 ga, 27/64", 29 ga, 3/16", 3/32", 3/8", 5/16", 5/32", 5/64", 7 ga, 7/16", 7/32", F, U | 7" | 4" | 1 1/4" | 0000000 | 00000 |
Magnetic Bit Organizing Caddies

Mount the magnetic base to walls, cabinets, and other steel surfaces.
For Number of Bits | For Bit Hex Shank Size | Lg. | Wd. | Ht. | Material | Mount Type | Each | |
37 | 1/4" | 7" | 1 1/2" | 1" | Plastic | Magnetic Base | 00000000 | 000000 |
Reversible-Bit Screwdriver/Nutdrivers






Bits have a different tip at each end and snap into the shaft. A ball detent holds the bit in place. To use as nutdriver, remove the bit and turn fasteners with the shaft, which is also reversible.
Cushion-grip drivers offer comfort and some slip resistance. Bits turn eight screw sizes and the shaft three external hex sizes.
Shaft | Material | |||||||||||
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For Bit Hex Shank Size | No. of Sizes | Sizes Included | Overall Lg. | Lg. | O'all Wd. | Bit-Holding Mechanism | Shaft | Bit | Handle | Features | Each | |
Cushion Grip | ||||||||||||
1/4", 5/16" | 11 | Phillips: No. 1, No. 2 Slotted: 3/16", 1/4" Torx: T10, T15 Square: No. 1, No. 2 External Hex: 1/4" External Hex: 5/16", 3/8" | 7" | 2 1/2" | 17/32" | Ball Detent | Chrome-Plated Steel | Steel | Plastic | Bit storage inside shaft | 0000000 | 000000 |
Tap and Drill Bit Cases

These steel cases close for easy transport and are labeled with sizes for organizing tools. Taps and drill bits are not included.
No. of Taps Stored | Holds Tap Sizes | No. of Drill Bits Stored | Holds Drill Bit Sizes | Lg. | Wd. | Ht. | Material | Each | |
For Taps and Drill Bits | |||||||||
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9 | One each of Nos. 6-32, 8-32, 10-24, 10-32; One each of 1/4"-20, 5/16"-18, 3/8"-16, 7/16"-14, 1/2"-13 | 9 | One each of Nos. 36, 29, 25, 21, 7; One each of 5/16", 27/64"; One each of F, U | 7" | 4" | 1 1/4" | Steel | 0000000 | 000000 |
9 | One each of Nos. 6-40, 8-36, 10-24, 10-32; One each of 1/4"-28, 5/16"-24, 3/8"-24, 7/16"-20, 1/2"-20 | 9 | One each of Nos. 33, 29, 25, 21, 3; One each of 25/64", 29/64"; One each of I, Q | 7" | 4" | 1 1/4" | Steel | 0000000 | 00000 |
9 | One each of M2.5 × 0.45, M3 × 0.5, M3.5 × 0.6, M4 × 0.7, M5 × 0.8, M6 × 1, M8 × 1.25, M10 × 1.5, M12 × 1.75 | 9 | One each of 2.05, 2.5, 2.9, 3.3, 4.2, 5, 6.7, 8.5, 10.2 mm | 7" | 4" | 1 1/4" | Steel | 0000000 | 00000 |
Tap and Drill Bit Stands

Keep taps and drill bits organized. All holes are labeled with sizes. Taps and drill bits are not included.
No. of Taps Stored | Holds Tap Sizes | No. of Drill Bits Stored | Holds Drill Bit Sizes | Lg. | Wd. | Ht. | Material | Each | |
For Taps and Drill Bits | |||||||||
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16 | One each of M2, M3; Two each of M4, M5, M6, M8, M10, M12, M14 | 25 | Two each of 3.3 mm, 4.5 mm, 12 mm; One each of 1.8 mm, 2.4 mm, 2.5 mm, 3.4 mm, 4.2 mm, 5 mm, 5.25 mm, 5.5 mm, 6.6 mm, 6.8 mm; 7 mm, 8.5 mm, 8.8 mm, 9 mm, 10.2 mm, 10.8 mm, 12.5 mm, 14 mm, 16 mm | 7" | 4 1/2" | 1 11/16" | Plastic | 0000000 | 000000 |