WildBossy M35 Cobalt Drill Bit Set 20-Piece (1/16"–1/2") | High-Speed Steel Jobber Length Kit with Case

Meet the WildBossy M35 Cobalt Drill Bit Set, a 20-piece kit built for tougher metals and more reliable drilling. Made from M35 cobalt steel with added molybdenum and cobalt, these bits form a hardened alloy that stands up to demanding tasks while remaining precise and controllable. The set’s edge resists heat and wear, helping you maintain sharpness project after project. The included storage case keeps the full set organized and portable for on-site jobs or busy workshops.

Key benefits

• A 5% cobalt alloy provides improved wear resistance and sustained cutting performance, especially in hardened materials.
• The 135° split-point minimizes walking as you start holes and helps chips move away cleanly.
• TiN coating adds a layer of protection against heat, extending life during repeated drilling.
• 3-flat shank design locks into the chuck for reduced bit wandering and better control.

What’s included and range

• 20 pieces in sizes from 1/16" to 1/2", with some sizes in duplicate for common tasks.
• Sizes listed: 1/16x2, 5/64x2, 3/32x2, 7/64x2, 1/8x2, 9/64, 5/32, 11/64, 3/16x2, 7/32, 1/4, 5/16, 3/8, 1/2 inches.
• Includes a sturdy plastic case for easy storage and transport.

Ideal uses and safety notes

These cobalt HSS bits excel at drilling stainless steel, steel, and cast iron, with compatible use on wood and aluminum alloys. Not recommended for glass or ceramic materials. Use appropriate speed, moderate pressure, and avoid overheating for best results.

Care and service

Keep bits clean and dry after use, store in the case, and reach out to WildBossy if you have questions or issues with the set.