SEDIANAS 3PCS Titanium HSS Step Drill Bit Set – 31 Sizes, 118° Split Point

SEDIANAS 3PCS Titanium HSS Step Drill Bit Set

Meet a compact, durable drill bit set designed to simplify drilling across metals and composites. The SEDIANAS 3PCS titanium-coated HSS step bits deliver a practical range of hole sizes across materials, from DIY tasks to professional projects, with a focus on reliability and effortless handling.

Built for longevity, the bits feature a titanium coating that boosts heat resistance and reduces wear, so you can rely on cleaner holes and fewer interruptions during a job. This coating is designed to help the unibody remain sharper longer, supporting repeat use in everyday tasks without frequent replacements.

Key features

• HSS step drill with Titanium Coating for longer service life and improved resistance to heat and corrosion.
• 118° split-point tip with spiral dual-flute design for self-centering starts and quicker chip evacuation.
• Two spiral flutes provide faster cutting, smoother penetration, and cleaner holes across multiple materials.
• Wide compatibility for drilling in plastic, aluminum, iron, and many sheet metals (not recommended for stainless steel).
• Set includes a total of 31 hole sizes across three bits: #1 with 13 steps, #2 with 12 steps, and #3 with 9 steps.

Designed for everyday use

• 118° split-point tip helps start holes precisely without wandering, even on soft metals and plastics.
• Dual-flute geometry facilitates fast chip removal and reduces clogging, yielding cleaner holes faster.
• Durable titanium coating extends life across a variety of drilling tasks, reducing the need for frequent replacements.

Applications and limits

Best suited for plastic, aluminum, iron, and many sheet metals. Not recommended for stainless steel or other harder metals, where higher-strength tools may be required.

Tips for best results

• Use appropriate drill speed and light to moderate pressure to minimize heat buildup.
• Apply a touch of lubrication or coolant when drilling metal to improve cutting and longevity.
• Store and transport the set in the included portable bag for quick access on any job site.

Whether you’re wiring, mounting hardware, or tackling a DIY upgrade, this compact set offers flexible hole sizing, dependable performance, and a clear path to neater results without committing to a full workshop of bits.