Drill Bits for Hardened Steel
Straight Flute Carbide Drill Bits – Made in USA
Drill bits are essential tools for any handyman, mechanic, or DIY enthusiast. They come in a variety of sizes and materials to suit different applications. Drill bits for hardened steel are ideal for tasks that require drilling through tough materials such as hardened steel, cast iron, and titanium. If you don’t have hardened steel drill bits, drilling through these metals can be challenging or impossible, given their natural strength. 
Terminator Straight Flute Sub-Micron Carbide Drill Bits. Drill bits for hardened steel and abrasive materials in the 42-65 Rockwell “C” range. 140 degree split point. These bits have superior oxidation resistance, providing unparalleled performance in high temperature machining.
Manufactured in the USA from premium C2 solid carbide, our straight flute drill bits are designed for drilling hardened steel, tool steel, cast iron, Stainless Steel, and other difficult-to-machine materials.
Need help deciding? Call 800-350-8665
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Solid Carbide Spade Drill Bit – Made in USA
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Carbide Straight Flute Drill Bits – METRIC
Price range: $12.00 through $68.00 This product has multiple variants. The options may be chosen on the product page -
Carbide Straight Flute Drill Bits-Fractional
Price range: $12.54 through $218.63 This product has multiple variants. The options may be chosen on the product page -
CARBIDE STRAIGHT FLUTE DRILL BITS – Number Sizes #36-#65
Price range: $15.87 through $20.51 This product has multiple variants. The options may be chosen on the product page -
CARBIDE STRAIGHT FLUTE DRILL BITS – Number Sizes #1-#35
Price range: $16.40 through $30.10 This product has multiple variants. The options may be chosen on the product page -
TERMINATOR CARBIDE STRAIGHT FLUTE DRILL BITS – – Letter Sizes A – Z
Price range: $34.55 through $101.11 This product has multiple variants. The options may be chosen on the product page -
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13pc Solid Carbide Drill Bit Set – Straight Flute XF13
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XNF25 Terminator Carbide Twist Drill Bit Set – Metric
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29pc Solid Carbide Drill Bit Set – Straight Flute XF29
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115pc CARBIDE Straight Flute Drill Bit Set – XF115
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Drilling Titanium, Hardened Steel & Exotic Alloys
When you're drilling titanium, hardened steel, tool steel, or other difficult-to-machine materials, ordinary drill bits often fail due to excessive heat and rapid wear.
Our USA-made Terminator Straight Flute Carbide Drill Bits are manufactured from premium C2 sub-micron solid carbide and designed for hardened steels from 42–65 Rockwell C. They also deliver exceptional performance in titanium, stainless steel, cast iron, and other high-strength alloys.
Whether you're searching for the best drill bit for titanium, need to drill holes in hardened steel, or are machining Inconel, Hastelloy, Monel, or other exotic alloys, these carbide drill bits are built for the toughest applications.
Ideal for drilling:
- Titanium & Titanium Alloys
- Hardened Steel (42–65 HRC)
- Tool Steel
- Stainless Steel
- Cast Iron
- Inconel
- Hastelloy
- Monel
Welcome to Drill Bit Warehouse, bringing you only the highest quality drill bits and drill bit sets for less!
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Mailing Address:
1735 Buford HWY
Ste 215-138
Cumming, GA 30041 USA - Phone: 800-350-8665
- Fax: (888)-374-5489
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