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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Finish Finish |
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Individual/Set Individual/Set |
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Length Class Length Class |
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![]() | Jobbers' Length |
Flute Direction Flute Direction |
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Right Hand |
Shank Type Shank Type |
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Container Type Container Type |
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Point Angle Point Angle |
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Bit Style Bit Style |
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![]() | Spiral Flute |
DFARS (Defense Acquisition Regulations Supplement) DFARS (Defense AcquisitionRegulations Supplement) |
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Specifications Met Specifications Met |
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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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Drill Bit Decimal Size Equivalents
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About Drill Bits
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Cobalt Steel Drill Bit Sets

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.
Titanium-nitride (TiN) coated drill bits last longer and can drill at higher speeds than uncoated 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.
Number of Pieces | Drill Bit Sizes Included | Point Style | Specifications Met | For Use On | Each | |
Inch | ||||||
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Uncoated Cobalt Steel | ||||||
13 | 1/16"-1/4" (increments of 1/64") | Split | NAS907 Type J | Steel, Hardened Steel, Iron, Stainless Steel, Nickel | 0000000 | 000000 |
15 | 1/16"-1/2" (increments of 1/32") | Split | NAS907 Type J | Steel, Hardened Steel, Iron, Stainless Steel, Nickel | 0000000 | 000000 |
21 | 1/16"-3/8" (increments of 1/64") | Split | NAS907 Type J | Steel, Hardened Steel, Iron, Stainless Steel, Nickel | 0000000 | 000000 |
29 | 1/16"-1/2" (increments of 1/64") | Split | NAS907 Type J | Steel, Hardened Steel, Iron, Stainless Steel, Nickel | 0000000 | 000000 |
Titanium-Nitride (TiN) Coated Cobalt Steel | ||||||
13 | 1/16"-1/4" (increments of 1/64") | Split | NAS907 Type J | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 00000 |
15 | 1/16"-1/2" (increments of 1/32") | Split | NAS907 Type J | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 000000 |
21 | 1/16"-3/8" (increments of 1/64") | Split | NAS907 Type J | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 000000 |
29 | 1/16"-1/2" (increments of 1/64") | Split | NAS907 Type J | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel, Titanium, Fiberglass | 00000000 | 000000 |
Wire Gauge | ||||||
Uncoated Cobalt Steel | ||||||
20 | 80-61 ga | Standard | NAS907 Type J | Steel, Hardened Steel, Iron, Stainless Steel, Nickel | 0000000 | 00000 |
60 | 60-53 ga 52-1 ga | Standard Split | NAS907 Type J NAS907 Type J | Steel, Hardened Steel, Iron, Stainless Steel, Nickel | 0000000 | 000000 |
Letter | ||||||
Uncoated Cobalt Steel | ||||||
26 | A-Z | Split | NAS907 Type J | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 000000 |
Metric | ||||||
Uncoated Cobalt Steel | ||||||
13 | 1.0 mm and 1.5mm, 2.0-7.0 mm (increments of 0.5 mm) | Split | NAS907 Type J | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 00000000 | 00000 |
19 | 1.0 mm and 1.5 mm, 2.0-10.0 mm (increments of 0.5 mm) | Split | NAS907 Type J | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 00000000 | 00000 |
25 | 1.0 mm and 1.5 mm, 2.0-13.0 mm (increments of 0.5 mm) | Split | NAS907 Type J | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 00000000 | 000000 |
41 | 6.0-10.0 mm (increments of 0.1 mm) | Split | NAS907 Type J | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 00000000 | 000000 |
Inch, Wire Gauge, Letter | ||||||
Uncoated Cobalt Steel | ||||||
115 | 1/16"-1/2" (increments of 1/64"), 52-1 ga, A-Z 60-53 ga | Split Standard | NAS907 Type J NAS907 Type J | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 000000 |
Inch, Wire Gauge, Metric | ||||||
Uncoated Cobalt Steel | ||||||
114 | 1/16"-1/2" (increments of 1/64") 60-1 ga 1.0-13.0 mm (increments of 0.5 mm) | Split | NAS907 Type J | Steel, Hardened Steel, Tool Steel, Iron, Stainless Steel, Nickel | 0000000 | 000000 |