Crosstar M35 Cobalt Drill Bit Set – 21pcs, 1/16-1/2 in, TiAlN Coated Self-Centering Bits for Thin Hardened Metals

Overview

The Crosstar M35 Cobalt Drill Bit Set delivers a purpose-built solution for drilling thin, hard metals with confidence. Built around a tough M35 cobalt core and TiAlN coating, these bits are designed to resist heat and maintain a sharp edge through demanding work. The toolkit includes 21 pieces spanning 1/16 inch to 1/2 inch, all neatly organized in a durable case for fast, on-site access.

Key features at a glance

• 1/16-1/2 inch sizes for common sheet metal tasks
• M35 cobalt steel core for improved hot hardness
• TiAlN coating for exceptional wear resistance and extended life
• Self-centering Pilot Point tip to prevent bit walk on curved or hard surfaces
• 135° split point with a clean entry and reduced downforce
• Comprehensive 21-piece kit with duplicates for the smallest diameters
• Robust, laser-etched storage case for quick size identification
• Pro-tip guidance and a 90-day satisfaction guarantee

Engineered for thin, gummy metals

Thin sheet metals such as stainless steel and titanium can be challenging to drill. The M35 cobalt core helps resist edge softening under localized heat, while the geometry is optimized to cut cleanly with controlled force. The result is smoother starts and a more predictable drilling experience, even on difficult materials.

Start straight, drill fast, finish clean

The Pilot Point tip is self-centering, reducing bit walk and delivering accurately placed holes. Paired with a 135° split point, you’ll experience faster penetration and noticeably less exit burr, which translates to less post-processing and a more professional finish right away.

• Cleaner holes in metal panels
• Less need for deburring and rework

TiAlN coating for longer life

The TiAlN nano-coating is engineered to withstand high friction temperatures—well over 1,472°F (~800°C). This protective layer helps maintain a sharp edge longer than uncoated or standard coatings, contributing to more usable holes over the life of the set and lowering long-term costs.

Professional kit, smart organization

Includes the 16 most essential diameters with practical duplicates for the smallest sizes. Each bit sits in a robust, compartmentalized case with laser-etched size labels for fast identification. This design supports portability and reduces the time spent searching for the right bit on the job.

Pro-tip and guarantee

For the best results on thin metals, engage the Pilot Point with steady, vertical pressure at startup to prevent skating. The set is backed by a 90-day Satisfaction Guarantee, plus direct customer support to assist with any questions or concerns.

Real-world use cases

• Sheet metal fabrication and repair on stainless steel panels
• Drilling into titanium components where edge preservation matters
• Automotive, appliance, and light fabrication projects requiring precise, clean holes

Note: The sizing and tip designs vary by diameter, with standard tips on smaller bits and bullet tips on larger ones for optimized performance across the range.