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Decimal Size Equivalent Decimal Size Equivalent |
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Extended Length |
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Reduced Shank Length |
Shank Size Shank Size |
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![]() | Spiral Flute |
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Flute Direction Flute Direction |
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Maximum Drilling Depth Maximum Drilling Depth | Show |
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Maximum Drilling Depth Maximum Drilling Depth | Hide |
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Individual/Set Individual/Set |
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DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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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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Specifications Met Specifications Met |
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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.
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 | |||||||||
3/32" | 0.0938" | 4 1/4" | 2.1" | Round | 3/32" | Standard | Steel, Iron, Stainless Steel | 000000000 | 00000 |
Short-Flute Extended-Length Drill Bits

The short flutes on these bits provide increased rigidity for drilling straighter holes and the long length lets you access hard-to-reach spots.
Drill bits with a split point keep centered without a pilot hole.
For technical drawings and 3-D models, click on a part number.
Shank | |||||||||
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Size | Decimal Size Equivalent | Max. Drilling Depth | Type | Size | Point Style | Specifications Met | For Use On | Each | |
6" Overall Lg. | |||||||||
Inch | |||||||||
Black-Oxide High-Speed Steel | |||||||||
13/64" | 0.2031" | 2.1" | Round | 13/64" | Split | NAS907 Type B | Steel, Iron, Stainless Steel | 0000000 | 00000 |
12" Overall Lg. | |||||||||
Inch | |||||||||
Black-Oxide High-Speed Steel | |||||||||
13/64" | 0.2031" | 2.1" | Round | 13/64" | Split | NAS907 Type B | Steel, Iron, Stainless Steel | 0000000 | 00000 |
Chip-Clearing Drill Bits



These jobbers'-length bits have the rigidity and length required for most applications. The flutes are designed to lift chips out of the hole, reducing clogging and improving coolant flow.
Parabolic spiral flute drill bits have wider flutes for more efficient chip evacuation than spiral-flute bits.
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.
Drill bits with a split point keep centered without a pilot hole.
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—Parabolic Spiral Flute | |||||||||
Black-Oxide High-Speed Steel | |||||||||
10 ga | 0.1935" | 3 5/8" | 2.1" | Round | 0.1935" | Split | Steel, Iron, Stainless Steel | 00000000 | 00000 |
6 ga | 0.204" | 3 3/4" | 2.1" | Round | 0.204" | Split | Steel, Iron, Stainless Steel | 00000000 | 0000 |
5 ga | 0.2055" | 3 3/4" | 2.1" | Round | 0.2055" | Split | Steel, Iron, Stainless Steel | 00000000 | 0000 |
4 ga | 0.209" | 3 3/4" | 2.1" | Round | 0.209" | Split | Steel, Iron, Stainless Steel | 00000000 | 0000 |
3 ga | 0.213" | 3 3/4" | 2.1" | Round | 0.213" | Split | Steel, Iron, Stainless Steel | 00000000 | 0000 |
Titanium-Nitride (TiN) Coated High-Speed Steel | |||||||||
10 ga | 0.1935" | 3 5/8" | 2.1" | Round | 0.1935" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 000000000 | 0000 |
6 ga | 0.204" | 3 3/4" | 2.1" | Round | 0.204" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 000000000 | 00000 |
5 ga | 0.2055" | 3 3/4" | 2.1" | Round | 0.2055" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 00000000 | 00000 |
4 ga | 0.209" | 3 3/4" | 2.1" | Round | 0.209" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 000000000 | 00000 |
3 ga | 0.213" | 3 3/4" | 2.1" | Round | 0.213" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Aluminum, Brass, Bronze, Plastic | 000000000 | 00000 |
Uncoated High-Speed Steel | |||||||||
10 ga | 0.1935" | 3 5/8" | 2.1" | Round | 0.1935" | Split | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 0000000 | 0000 |
6 ga | 0.204" | 3 3/4" | 2.1" | Round | 0.204" | Split | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 00000000 | 0000 |
5 ga | 0.2055" | 3 3/4" | 2.1" | Round | 0.2055" | Split | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 00000000 | 0000 |
4 ga | 0.209" | 3 3/4" | 2.1" | Round | 0.209" | Split | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 00000000 | 0000 |
3 ga | 0.213" | 3 3/4" | 2.1" | Round | 0.213" | Split | Steel, Iron, Aluminum, Brass, Bronze, Plastic | 00000000 | 0000 |
Cobalt Steel Drill Bits

These jobbers'-length bits have the rigidity and length required for most applications. Made of cobalt steel, which has better heat and wear resistance than high-speed steel, they can run up to 25% faster and have a longer tool life.
Drill bits with a split point keep centered without a pilot hole.
For technical drawings and 3-D models, click on a part number.
Shank | Each | |||||||||
---|---|---|---|---|---|---|---|---|---|---|
Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | Specifications Met | For Use On | Each | |
Inch | ||||||||||
Uncoated Cobalt Steel | ||||||||||
13/64" | 0.2031" | 3 5/8" | 2.1" | Round | 13/64" | Split | NAS907 Type J | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
Carbide-Tipped Drill Bits

These jobbers'-length bits have the rigidity and length required for most applications. Made of carbide-tipped steel, which has better wear resistance than high-speed steel and cobalt steel, they 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.
Drill bits with a split point keep centered without a pilot hole.
Drill bits with 135° point angle produce smaller chips than 118° point to prevent clogging.
For technical drawings and 3-D models, click on a part number.
Shank | |||||||||
---|---|---|---|---|---|---|---|---|---|
Size | Decimal Size Equivalent | Overall Lg. | Type | Size | For Use On | Max. Drilling Dp. | Point Angle | Each | |
Standard Point | |||||||||
Inch | |||||||||
Uncoated Carbide-Tipped Steel | |||||||||
15/64" | 0.2344" | 4" | Round | 15/64" | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 2.1" | 118° | 0000000 | 000000 |
Wire Gauge | |||||||||
Uncoated Carbide-Tipped Steel | |||||||||
1 ga | 0.228" | 4" | Round | 0.228" | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 2.1" | 118° | 00000000 | 00000 |
Letter | |||||||||
Uncoated Carbide-Tipped Steel | |||||||||
A | 0.234" | 4" | Round | 0.234" | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 2.1" | 118° | 00000000 | 00000 |
B | 0.238" | 4" | Round | 0.238" | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 2.1" | 118° | 00000000 | 00000 |
C | 0.242" | 4" | Round | 0.242" | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 2.1" | 118° | 00000000 | 00000 |
D | 0.246" | 4" | Round | 0.246" | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 2.1" | 118° | 00000000 | 00000 |
Split Point | |||||||||
Inch | |||||||||
Uncoated Carbide-Tipped Steel | |||||||||
15/64" | 0.2344" | 4" | Round | 15/64" | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 2.1" | 135° | 00000000 | 00000 |
Wire Gauge | |||||||||
Uncoated Carbide-Tipped Steel | |||||||||
10 ga | 0.1935" | 3 3/4" | Round | 0.1935" | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 2.1" | 135° | 000000000 | 00000 |
9 ga | 0.196" | 3 3/4" | Round | 0.196" | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 2.1" | 135° | 000000000 | 00000 |
8 ga | 0.199" | 3 3/4" | Round | 0.199" | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 2.1" | 135° | 000000000 | 00000 |
7 ga | 0.201" | 3 3/4" | Round | 0.201" | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 2.1" | 135° | 000000000 | 00000 |
1/2" 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. 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.
Drill bits with a split point keep centered without a pilot hole.
For technical drawings and 3-D models, click on a part number.
Shank | |||||||||
---|---|---|---|---|---|---|---|---|---|
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 | |||||||||
1/2" | 0.5" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 000000 |
33/64" | 0.5156" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
17/32" | 0.5313" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
35/64" | 0.5469" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
9/16" | 0.5625" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
37/64" | 0.5781" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
19/32" | 0.5938" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
39/64" | 0.6094" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
5/8" | 0.625" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
41/64" | 0.6406" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
21/32" | 0.6563" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
43/64" | 0.6719" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
11/16" | 0.6875" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
45/64" | 0.7031" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
23/32" | 0.7188" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
47/64" | 0.7344" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
3/4" | 0.75" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
49/64" | 0.7656" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
25/32" | 0.7813" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
51/64" | 0.7969" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
13/16" | 0.8125" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
27/32" | 0.8438" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
29/32" | 0.9063" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
15/16" | 0.9375" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
31/32" | 0.9688" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
53/64" | 0.8281" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
55/64" | 0.8594" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
7/8" | 0.875" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
57/64" | 0.8906" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
59/64" | 0.9219" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
61/64" | 0.9531" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
63/64" | 0.9844" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
1" | 1" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
1 1/64" | 1.0156" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
1 1/32" | 1.0313" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
1 3/64" | 1.0469" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
1 1/16" | 1.0625" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
1 5/64" | 1.0781" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
1 3/32" | 1.0938" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
1 7/64" | 1.1094" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
1 1/8" | 1.125" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
1 9/64" | 1.1406" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
1 5/32" | 1.1563" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
1 11/64" | 1.1719" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
1 3/16" | 1.1875" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
1 13/64" | 1.2031" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
1 7/32" | 1.2188" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
1 15/64" | 1.2344" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
1 1/4" | 1.25" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
1 9/32" | 1.2813" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
1 5/16" | 1.3125" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 00000 |
1 11/32" | 1.3438" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 000000 |
1 3/8" | 1.375" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 000000 |
1 13/32" | 1.4063" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 000000 |
1 7/16" | 1.4375" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 000000 |
1 15/32" | 1.4688" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 000000 |
1 1/2" | 1.5" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 0000000 | 000000 |
Drill Bits with Flats on Shank | |||||||||
Inch | |||||||||
Black-Oxide High-Speed Steel | |||||||||
33/64" | 0.5156" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Split | 0000000 | 00000 |
17/32" | 0.5313" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Split | 0000000 | 00000 |
35/64" | 0.5469" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Split | 0000000 | 00000 |
9/16" | 0.5625" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Split | 0000000 | 00000 |
37/64" | 0.5781" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Split | 0000000 | 00000 |
19/32" | 0.5938" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Split | 0000000 | 00000 |
39/64" | 0.6094" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Split | 0000000 | 00000 |
5/8" | 0.625" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Split | 0000000 | 00000 |
41/64" | 0.6406" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Split | 0000000 | 00000 |
21/32" | 0.6563" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Split | 0000000 | 00000 |
43/64" | 0.6719" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Split | 0000000 | 00000 |
11/16" | 0.6875" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Split | 0000000 | 00000 |
45/64" | 0.7031" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Split | 0000000 | 00000 |
23/32" | 0.7188" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Split | 0000000 | 00000 |
47/64" | 0.7344" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Split | 0000000 | 00000 |
3/4" | 0.75" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Split | 0000000 | 00000 |
49/64" | 0.7656" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 00000000 | 00000 |
25/32" | 0.7813" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 00000000 | 00000 |
51/64" | 0.7969" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 00000000 | 00000 |
13/16" | 0.8125" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 00000000 | 00000 |
27/32" | 0.8438" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 00000000 | 00000 |
29/32" | 0.9063" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 00000000 | 00000 |
15/16" | 0.9375" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 00000000 | 00000 |
31/32" | 0.9688" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 00000000 | 00000 |
53/64" | 0.8281" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 00000000 | 00000 |
55/64" | 0.8594" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 00000000 | 00000 |
7/8" | 0.875" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 00000000 | 00000 |
57/64" | 0.8906" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 00000000 | 00000 |
59/64" | 0.9219" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 00000000 | 00000 |
61/64" | 0.9531" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 00000000 | 00000 |
63/64" | 0.9844" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 00000000 | 00000 |
1" | 1" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 00000000 | 00000 |
1 1/64" | 1.0156" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 00000000 | 00000 |
1 1/32" | 1.0313" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 00000000 | 00000 |
1 3/64" | 1.0469" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 00000000 | 00000 |
1 1/16" | 1.0625" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 00000000 | 00000 |
1 5/64" | 1.0781" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 00000000 | 00000 |
1 3/32" | 1.0938" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 00000000 | 00000 |
1 7/64" | 1.1094" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 00000000 | 00000 |
1 1/8" | 1.125" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 00000000 | 00000 |
1 9/64" | 1.1406" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 00000000 | 00000 |
1 5/32" | 1.1563" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 00000000 | 00000 |
1 11/64" | 1.1719" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 00000000 | 00000 |
1 3/16" | 1.1875" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 00000000 | 00000 |
1 13/64" | 1.2031" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 00000000 | 00000 |
1 7/32" | 1.2188" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 00000000 | 00000 |
1 15/64" | 1.2344" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 00000000 | 00000 |
1 1/4" | 1.25" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 00000000 | 00000 |
1 9/32" | 1.2813" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 00000000 | 00000 |
1 5/16" | 1.3125" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 00000000 | 000000 |
1 11/32" | 1.3438" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 00000000 | 000000 |
1 3/8" | 1.375" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 00000000 | 000000 |
1 13/32" | 1.4063" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 00000000 | 000000 |
1 7/16" | 1.4375" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 00000000 | 000000 |
1 15/32" | 1.4688" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 00000000 | 000000 |
1 1/2" | 1.5" | 6" | 2.1" | Reduced Round | 1/2" | Steel, Iron, Stainless Steel | Standard | 00000000 | 000000 |
Cobalt Steel 1/2" Diameter Reduced-Shank Drill Bits

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 shank has a smaller diameter than the tip, allowing you to drill large holes with machines that have small-capacity chucks. A split point keeps the bit centered without a pilot hole. Also known as Silver and Deming bits, they have a 1/2” diameter shank.
Shank | |||||||||
---|---|---|---|---|---|---|---|---|---|
Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | |
Inch | |||||||||
Uncoated Cobalt Steel | |||||||||
33/64" | 0.5156" | 6" | 2.1" | Reduced Round | 1/2" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 000000 |
17/32" | 0.5313" | 6" | 2.1" | Reduced Round | 1/2" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
35/64" | 0.5469" | 6" | 2.1" | Reduced Round | 1/2" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
9/16" | 0.5625" | 6" | 2.1" | Reduced Round | 1/2" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
37/64" | 0.5781" | 6" | 2.1" | Reduced Round | 1/2" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
19/32" | 0.5938" | 6" | 2.1" | Reduced Round | 1/2" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
39/64" | 0.6094" | 6" | 2.1" | Reduced Round | 1/2" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
5/8" | 0.625" | 6" | 2.1" | Reduced Round | 1/2" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
41/64" | 0.6406" | 6" | 2.1" | Reduced Round | 1/2" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
21/32" | 0.6563" | 6" | 2.1" | Reduced Round | 1/2" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
43/64" | 0.6719" | 6" | 2.1" | Reduced Round | 1/2" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
11/16" | 0.6875" | 6" | 2.1" | Reduced Round | 1/2" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
45/64" | 0.7031" | 6" | 2.1" | Reduced Round | 1/2" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
23/32" | 0.7188" | 6" | 2.1" | Reduced Round | 1/2" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
47/64" | 0.7344" | 6" | 2.1" | Reduced Round | 1/2" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
3/4" | 0.75" | 6" | 2.1" | Reduced Round | 1/2" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
49/64" | 0.7656" | 6" | 2.1" | Reduced Round | 1/2" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
25/32" | 0.7813" | 6" | 2.1" | Reduced Round | 1/2" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
51/64" | 0.7969" | 6" | 2.1" | Reduced Round | 1/2" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
13/16" | 0.8125" | 6" | 2.1" | Reduced Round | 1/2" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
53/64" | 0.8281" | 6" | 2.1" | Reduced Round | 1/2" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
27/32" | 0.8438" | 6" | 2.1" | Reduced Round | 1/2" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
55/64" | 0.8594" | 6" | 2.1" | Reduced Round | 1/2" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
7/8" | 0.875" | 6" | 2.1" | Reduced Round | 1/2" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
57/64" | 0.8906" | 6" | 2.1" | Reduced Round | 1/2" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
29/32" | 0.9063" | 6" | 2.1" | Reduced Round | 1/2" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
59/64" | 0.9219" | 6" | 2.1" | Reduced Round | 1/2" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
15/16" | 0.9375" | 6" | 2.1" | Reduced Round | 1/2" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
61/64" | 0.9531" | 6" | 2.1" | Reduced Round | 1/2" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 000000 |
31/32" | 0.9688" | 6" | 2.1" | Reduced Round | 1/2" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 000000 |
63/64" | 0.9844" | 6" | 2.1" | Reduced Round | 1/2" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 000000 |
1" | 1" | 6" | 2.1" | Reduced Round | 1/2" | Split | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 000000 |
Carbide-Tipped 1/2" Diameter Reduced-Shank Drill Bits

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 hard and abrasive material. 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.
For technical drawings and 3-D models, click on a part number.
Shank | |||||||||
---|---|---|---|---|---|---|---|---|---|
Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | |
Inch | |||||||||
Uncoated Carbide-Tipped Steel | |||||||||
1/2" | 0.5" | 6" | 2.1" | Reduced Round | 1/2" | Standard | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
17/32" | 0.5313" | 6" | 2.1" | Reduced Round | 1/2" | Standard | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
9/16" | 0.5625" | 6" | 2.1" | Reduced Round | 1/2" | Standard | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
19/32" | 0.5938" | 6" | 2.1" | Reduced Round | 1/2" | Standard | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
5/8" | 0.625" | 6" | 2.1" | Reduced Round | 1/2" | Standard | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
21/32" | 0.6563" | 6" | 2.1" | Reduced Round | 1/2" | Standard | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
11/16" | 0.6875" | 6" | 2.1" | Reduced Round | 1/2" | Standard | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
23/32" | 0.7188" | 6" | 2.1" | Reduced Round | 1/2" | Standard | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 0000000 | 00000 |
3/4" | 0.75" | 6" | 2.1" | Reduced Round | 1/2" | Standard | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
25/32" | 0.7813" | 6" | 2.1" | Reduced Round | 1/2" | Standard | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
13/16" | 0.8125" | 6" | 2.1" | Reduced Round | 1/2" | Standard | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
27/32" | 0.8438" | 6" | 2.1" | Reduced Round | 1/2" | Standard | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
7/8" | 0.875" | 6" | 2.1" | Reduced Round | 1/2" | Standard | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
29/32" | 0.9063" | 6" | 2.1" | Reduced Round | 1/2" | Standard | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
15/16" | 0.9375" | 6" | 2.1" | Reduced Round | 1/2" | Standard | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
1" | 1" | 6" | 2.1" | Reduced Round | 1/2" | Standard | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
1 1/32" | 1.0313" | 6" | 2.1" | Reduced Round | 1/2" | Standard | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
1 1/16" | 1.0625" | 6" | 2.1" | Reduced Round | 1/2" | Standard | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
1 1/8" | 1.125" | 6" | 2.1" | Reduced Round | 1/2" | Standard | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 0000000 | 000000 |
1 1/4" | 1.25" | 6" | 2.1" | Reduced Round | 1/2" | Standard | Steel, Iron, Titanium, Aluminum, Brass, Bronze, Plastic | 0000000 | 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.
For technical drawings and 3-D models, click on a part number.
Shank | |||||||||
---|---|---|---|---|---|---|---|---|---|
Size | Decimal Size Equivalent | Overall Lg. | Max. Drilling Dp. | Type | Size | Point Style | For Use On | Each | |
Inch | |||||||||
Black-Oxide High-Speed Steel | |||||||||
1" | 1" | 6" | 2.1" | Reduced Round | 3/4" | Standard | Steel, Iron, Stainless Steel | 0000000 | 000000 |
1 1/32" | 1.0313" | 6" | 2.1" | Reduced Round | 3/4" | Standard | Steel, Iron, Stainless Steel | 0000000 | 00000 |
1 1/16" | 1.0625" | 6" | 2.1" | Reduced Round | 3/4" | Standard | Steel, Iron, Stainless Steel | 0000000 | 00000 |
1 3/32" | 1.0938" | 6" | 2.1" | Reduced Round | 3/4" | Standard | Steel, Iron, Stainless Steel | 0000000 | 00000 |
1 1/8" | 1.125" | 6" | 2.1" | Reduced Round | 3/4" | Standard | Steel, Iron, Stainless Steel | 0000000 | 00000 |
1 5/32" | 1.1563" | 6" | 2.1" | Reduced Round | 3/4" | Standard | Steel, Iron, Stainless Steel | 0000000 | 00000 |
1 3/16" | 1.1875" | 6" | 2.1" | Reduced Round | 3/4" | Standard | Steel, Iron, Stainless Steel | 0000000 | 00000 |
1 7/32" | 1.2188" | 6" | 2.1" | Reduced Round | 3/4" | Standard | Steel, Iron, Stainless Steel | 0000000 | 000000 |
1 1/4" | 1.25" | 6" | 2.1" | Reduced Round | 3/4" | Standard | Steel, Iron, Stainless Steel | 0000000 | 000000 |
1 9/32" | 1.2813" | 6" | 2.1" | Reduced Round | 3/4" | Standard | Steel, Iron, Stainless Steel | 0000000 | 000000 |
1 5/16" | 1.3125" | 6" | 2.1" | Reduced Round | 3/4" | Standard | Steel, Iron, Stainless Steel | 0000000 | 000000 |
1 11/32" | 1.3438" | 6" | 2.1" | Reduced Round | 3/4" | Standard | Steel, Iron, Stainless Steel | 0000000 | 000000 |
1 3/8" | 1.375" | 6" | 2.1" | Reduced Round | 3/4" | Standard | Steel, Iron, Stainless Steel | 0000000 | 000000 |
1 7/16" | 1.4375" | 6" | 2.1" | Reduced Round | 3/4" | Standard | Steel, Iron, Stainless Steel | 0000000 | 000000 |
1 15/32" | 1.4688" | 6" | 2.1" | Reduced Round | 3/4" | Standard | Steel, Iron, Stainless Steel | 0000000 | 000000 |
1 1/2" | 1.5" | 6" | 2.1" | Reduced Round | 3/4" | Standard | Steel, Iron, Stainless Steel | 0000000 | 000000 |
1 9/16" | 1.5625" | 6" | 2.1" | Reduced Round | 3/4" | Standard | Steel, Iron, Stainless Steel | 0000000 | 000000 |
1 5/8" | 1.625" | 6" | 2.1" | Reduced Round | 3/4" | Standard | Steel, Iron, Stainless Steel | 0000000 | 000000 |
1 11/16" | 1.6875" | 6" | 2.1" | Reduced Round | 3/4" | Standard | Steel, Iron, Stainless Steel | 0000000 | 000000 |
1 3/4" | 1.75" | 6" | 2.1" | Reduced Round | 3/4" | Standard | Steel, Iron, Stainless Steel | 0000000 | 000000 |
1 13/16" | 1.8125" | 6" | 2.1" | Reduced Round | 3/4" | Standard | Steel, Iron, Stainless Steel | 0000000 | 000000 |
1 7/8" | 1.875" | 6" | 2.1" | Reduced Round | 3/4" | Standard | Steel, Iron, Stainless Steel | 0000000 | 000000 |
1 15/16" | 1.9375" | 6" | 2.1" | Reduced Round | 3/4" | Standard | Steel, Iron, Stainless Steel | 0000000 | 000000 |
2" | 2" | 6" | 2.1" | Reduced Round | 3/4" | Standard | Steel, Iron, Stainless Steel | 0000000 | 000000 |