WildBossy M35 5% Cobalt Metric Drill Bits Set (1

What people love (and don’t love)

What people love

Highly durable with 5% cobalt content, great for drilling metals and hard materials.
Sharp and precise, producing clean holes in various materials including plastic and steel.
Excellent value for the price with a functional storage case and clear size markings.
Long-lasting even after drilling many holes, often with just one bit remaining sharp.
Works well when used with lubrication and proper drilling technique.

What people don’t love

Some doubts about whether the bits are solid cobalt or just coated.
Storage case may arrive damaged or broken.
Bits can snap if used too fast or with too much pressure.

Durable and sharp cobalt drill bits that perform well for metalwork, though the case quality and material authenticity may vary.

Summary based on customer review evidence.

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Quick facts

Brand: ‎WildBossy
Price: USD 27.99
Rating: 4.50 (618 reviews)

If you regularly drill stainless steel, hard metal, or cast iron, a standard HSS set can dull quickly. The WildBossy M35 5% cobalt metric drill bits set is designed for tougher cutting, featuring M35 cobalt steel and a 135° split-point tip to help reduce walking when starting holes.

You can view the current price and full details on Amazon here.

This 19-piece set covers common metric sizes from 1mm through 10mm (in 0.5mm steps) and comes organized in a sturdy plastic storage case, making it easy to grab the size you need and keep your bits together on the job.

The bits use a jobber-length twist design with a gold oxide surface and straight shank. They’re intended for materials including stainless steel, steel, and cast iron, and they can also be used on wood, aluminum alloys, and other metals. As noted by the brand, they’re not suitable for glass or ceramics; manage speed, pressure, and heat for best drilling performance.