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5PCS Titanium Step Drill Bit – 4241 HSS Step Bit with Two Spiral Grooved, 50 Sizes from 3/16″ to 1-3/8″, Steps Bits for Metal, Aluminum, Wood & Plastic, for Electricians & DIY Spiral 5Pcs Set
If you’re looking for a budget-friendly step bit kit that covers a wide range of hole sizes, the SEDIANAS 5PCS Titanium Step Drill Bit Set is built for versatility. With a titanium finish over high-speed steel (HSS) and a spiral dual-flute design, it’s designed to cut smoothly while clearing chips efficiently.
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The 118° split point helps self-center to reduce walking—especially helpful when starting holes in sheet metal or thin stock. Each bit uses a hex shank for a secure hold in compatible drills and drivers, making it a practical pick for electricians, DIYers, and general shop use.
Recommended materials include plastic, aluminum, iron, and many types of sheet metal. It’s not recommended for stainless steel or other harder metals.
Titanium-coated HSS construction for corrosion/heat/rust resistance and longer service life
118° split point tip helps self-centering to reduce walking and improve start accuracy
Two spiral flutes (dual-flute) for faster chip removal and cleaner holes
5-piece set provides 50 step sizes for broad coverage across common hole diameters
Works on plastic, aluminum, iron, wood, and many sheet metals (not recommended for stainless)
Included size ranges (set coverage): 1/4–1-3/8 in; 3/16–7/8 in; 1/4–3/4 in; 1/8–1/2 in; 3/16–1/2 in.
