WildBossy M35 5% Cobalt Drill Bits Set (19pcs, 1–10mm) – HSS Twist for Stainless Steel

Premium M35 cobalt drill bits for metal projects

The WildBossy M35 5% cobalt drill bits set is engineered for tougher materials and longer-lasting performance. Crafted from M35 cobalt steel with molybdenum and cobalt additives, these bits are built to resist wear while delivering crisp, accurate holes. With a hardness rating up to 67 Rockwell, they’re designed to maintain sharpness across demanding cuts in stainless steel, steel, and cast iron, while still performing well on wood and aluminum when used with proper speed and pressure. The 19-piece metric range from 1 mm to 10 mm is neatly organized in a sturdy plastic case for quick access on the job site.

Key benefits

• 5% cobalt alloy offers enhanced hardness and potential for faster cutting and longer wear life compared to standard HSS bits.
• Hardness up to 67 Rockwell helps sustain sharpness under tougher drilling conditions.
• 135° split point reduces walking and improves hole start, while the gold oxide finish lowers friction and heat buildup.
• Full-length round straight shank ensures compatibility with most drill chucks and stable torque transfer.
• Versatile across stainless steel, steel, cast iron, plus wood and aluminum when used with appropriate speed and pressure.
• Sturdy plastic case keeps all 19 sizes organized and portable for fieldwork.

Contents, design, and performance

• 19 metric drill bits spanning 1 mm to 10 mm for a wide range of hole sizes.
• Precise 135° split point and fully ground edges for smooth chip movement and reduced walking.
• Gold oxide surface treatment enhances durability and reduces heat during drilling.
• Round straight shank design offers reliable clamping and consistent performance.

Applications and care tips

Ideal for hard metals like stainless steel, steel, and cast iron, with additional use in wood and aluminum. Maintain appropriate speed, pressure, and cooling to optimize results. Do not use on glass or ceramic materials.

Storage and satisfaction

Each bit rests in a robust storage case, making transport effortless and keeping edges protected. If you encounter any issues, WildBossy offers assistance to support your project needs.