GMTOOLS 29Pcs Cobalt Drill Bits Set – M35 HSS, 135-degree Split Point, Indexed Storage Case, 1/16-1/2 inch

GMTOOLS 29Pcs Cobalt Drill Bits Set: Precision, Durability, and Versatility

Designed for metal, wood, and plastic projects, this 29-piece set blends precise grinding with durable materials to support a wide range of tasks. The heart of the set is M35 cobalt alloy steel, which enhances wear resistance and helps maintain a sharp cutting edge through repeated use. The bits arrive in a sturdy metal indexed storage case that keeps each size in its place for quick selection during busy days in the shop or on the job site.

The 135-degree split point is engineered to auto-center as you begin drilling, helping to minimize wandering and reduce the amount of force needed to start a cut. Paired with a twist design that clears chips efficiently, you’ll experience steadier cuts and cleaner holes across metals, woods, and plastics alike.

Key features

• 135-degree split point auto-centers and reduces walking
• Twist design for clearer chips and faster cutting
• 5% cobalt alloy in M35 steel increases wear resistance
• Universal round shank fits most drill chucks

Built to last and versatile

The cobalt alloy content provides added wear resistance, helping maintain edge retention through tougher materials. The set’s robust construction supports repeat use, while the metal indexed storage case keeps bits organized and easy to transport between jobs.

• Durable cutting edge with precise grind
• Suitable for metal, wood, and plastic applications
• Organized, portable storage in a sturdy metal case

Versatility and storage

The 29-piece assortment covers sizes from 1/16 to 1/2 inch in incremental steps, enabling you to tackle common drilling tasks with a single kit. The metal indexed storage case helps you keep bits in order and ready for quick selection on site or in the workshop.

Practical tips for best results: start with the smallest bit and work up, maintain steady feed pressure, and avoid excessive lateral force. For best performance in metal and hardwood, consider light lubrication as appropriate to your material and tool. Always wear eye protection and follow tool manufacturer guidelines for speed and depth of cut.