ZELCANCobalt Added M35 Step Drill Bit, Spiral Step Drill Bit, Unibit Drill Bit for Cutting Drilling Holes On Stainless Steel, Steel, Metal Sheet, Multiple Hole Stepped Up Bit for Professionals

Q: can this be used to enlarge pre-existing holes?

I don't see why not if the hole is smaller than the largest part of the bit enlarger.

Q: Looking to drill a 1.5" hole in the base of a copper tub (not the water side, but the base pedestal for extending drain). Anyone use this for copper?

Copper is a lot softer than steel. It should cut it just fine. You need to drill a pilot hole first.

Q: Can it drill 1/8 " thick metal plate?

Yes, it can drill a 1/8 " thick metal plate.

4.4/5

Product ID: 85919735

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🔩M35 Cobalt Steel

⚙️Dual-Flute Design

🛠️10 Sizes in 1

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Description

🔧 Drill Smart, Not Hard! Unleash your inner craftsman with the ultimate step drill bit.

JAM FREE INNOVATION - Dual-flute design ensures smooth drilling with minimal debris.
UNMATCHED DURABILITY - Crafted with M35 molybdenum high-speed steel and cobalt for superior strength.
PRECISION ENGINEERING - Obvious markings for accurate hole placement—no more guesswork!
TIME SAVING EFFICIENCY - 10 sizes in one bit means less time changing tools and more time creating.
VERSATILE COMPATIBILITY - Perfect for steel, acrylic, PVC, and wood—drill like a pro on any material.

The ZELCANCobalt Added M35 Step Drill Bit is engineered for professionals seeking durability and efficiency. With its unique design and multiple sizes, this drill bit allows for precise drilling in various materials, making it an essential tool for any serious craftsman.