3-Piece HSS Titanium Step Drill Bit Set – Multiple Hole Sizes

3-Piece Heavy Duty Titanium Step Drill Bit Set

Tackle a wide range of drilling tasks with this 3-piece HSS Titanium-Coated Step Drill Bit Set. Engineered from high-speed bearing steel with a premium titanium coating, these step drill bits deliver exceptional sharpness, long-lasting durability, and clean, precise holes every time — all in one convenient kit.

Made in Mainland China.

Why Choose This Step Drill Bit Set?

• Titanium Coating: The titanium-coated HSS construction provides superior hardness and edge retention, meaning longer bit life and fewer replacements.
• Multiple Hole Sizes in One Bit: Each stepped bit allows you to drill a variety of hole diameters without swapping bits — saving time and effort on every project.
• Wide Material Compatibility: Ideal for drilling through plastic, aluminum, iron, and a broad range of sheet metals. (Not recommended for stainless steel or wood.)
• Clean Entry & Exit: The stepped design ensures burr-free, clean holes with minimal material deformation.
• Set of 3 Sizes: Covers lengths of 65mm (2.56"), 67mm (2.64"), 77mm (3.03"), and 101mm (3.98"), giving you full versatility across a wide range of DIY and professional applications.
• Gold & Black Finish: Dual-tone appearance makes size identification quick and easy.

Product Specifications

• Material: High-Speed Bearing Steel with Titanium Coating
• Sizes: 65mm / 67mm / 77mm / 101mm
• Color: Gold & Black
• Package Includes: 3 × Step Drill Bits
• Country of Origin: Made in Mainland China

Ideal Applications

These step drill bits are perfect for electricians, HVAC technicians, metalworkers, automotive enthusiasts, and serious DIYers. Use them to create clean holes in electrical enclosures, sheet metal panels, aluminum brackets, and more. Whether you're on the job site or in the garage, this set is ready to perform.

Learn More About Drill Bit Safety

Proper technique and eye/hand protection are essential when drilling metal. For workplace safety guidelines, visit the OSHA Hand & Power Tools Safety page.

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Frequently Asked Questions

Q: What materials can I use these titanium step drill bits on?

A: These step drill bits are designed for plastic, aluminum, iron, and general sheet metal. They are not recommended for stainless steel or wood, as those materials require specialized bit types.

Q: How many bits are included in this step drill bit set?

A: The set includes 3 HSS titanium-coated step drill bits in multiple size steps. The bits measure 65mm, 67mm, 77mm, and 101mm in length, covering a broad range of hole diameter options.

Q: What makes titanium-coated step drill bits better than standard bits?

A: The titanium coating adds an extra layer of hardness to the high-speed steel core, significantly reducing friction and heat buildup during drilling. This results in cleaner holes, extended bit life, and more consistent performance compared to uncoated bits.

Q: Can beginners use these step drill bits?

A: Absolutely. The stepped design makes it easy to achieve precise hole sizes without needing multiple differently-sized bits. Just apply steady, even pressure, use a suitable drill speed for the material, and always wear safety glasses for protection.