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Step Drill Bit Set for Metal- 5PCS Titanium 4241 HSS Step Bit with Two Straight Flutes, 50 Sizes from 1/16″ to 1-3/8″ for Aluminum, Wood & Plastic, Unibit for Electricians & DIY Straight 5Pcs Set
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What people love (and don’t love)
What people love
Wide variety of bit sizes, covering a broad range from 1/16″ to 1-3/8″
Made of quality titanium 4241 HSS, sharp and durable
Effective at cutting through metal, plastic, and wood smoothly without tear out
Comes with a solid storage case for easy organization
Good value for the price, recommended by professionals including aircraft technicians
What people don’t love
Some users found the bits not sharp enough
Performance on steel, especially soft steel, is below expectations and can be slow
Not recommended for heavy-duty steel cutting as advertised
Great set for general use on wood, plastic, and light metals, but less reliable on steel cutting.
The SEDIANAS 5PCS Titanium Step Drill Bit Set is built for makers, electricians, and DIYers who want one kit to cover a wide range of hole sizes without constantly swapping bits. With 5 step bits that collectively drill 50 sizes from 1/16" to 1-3/8", it’s a practical choice for enlarging holes or creating clean pass-throughs in common materials.
You can view the current price and full details on Amazon here.
Each bit is made from high speed steel (HSS) with a titanium finish and features two straight flutes designed for efficient chip evacuation and smoother cutting. The 3-flat shank design helps improve grip in the chuck to reduce slippage when working under higher torque.
5-piece step drill bit set drills 50 sizes from 1/16" to 1-3/8"
High speed steel (HSS) construction with titanium coating for heat/corrosion/rust resistance
Two straight flutes for faster chip removal and cleaner holes
3-flat (tri-flatted) shanks for stronger chuck grip and reduced slippage
Designed for multi-material use: steel sheet, aluminum, wood, and plastic
Included cutting diameter ranges: 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. Cutting angle: 118 degrees.
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