SEDIANAS Cobalt Drill Bit Set – 15-Piece M35 HSS Twist Bits, 1/16 to 3/8 Inch, Indexed Storage Case

Premium cobalt bits for demanding projects

Meet the SEDIANAS Cobalt Drill Bit Set, a 15-piece collection engineered to tackle hardened materials with confidence. Crafted from M35 cobalt high-speed steel, these bits offer enhanced heat resistance and hardness, helping you maintain sharpness and extend tool life through tough drilling tasks.

Why choose M35 cobalt bits

• M35 cobalt composition delivers superior heat resistance and hardness compared with standard HSS bits, supporting longer tool life in demanding jobs.
• 135 degree split-point tip provides self-centering starts, reducing walk-off and improving drilling accuracy on soft or hard materials.
• Fully ground twist design aids chip clearance and lowers friction, contributing to cooler, smoother drilling when pushing through tough materials.

Designed for versatility, this set covers a wide range of common sizes and materials. It’s well-suited for work on stainless steel, cast iron, high temperature alloys, titanium alloys, hard plastics, and wood. Whether you’re in a workshop, on a job site, or tackling a home project, these bits are built to handle challenging materials with confidence.

What you get and how it’s organized

• 15 drill bits spanning sizes from 1/16 inch to 3/8 inch to cover multiple needs (sizes listed in the data).
• Index storage case included, making it easy to store, transport, and quickly select the right size.

In everyday use, you may notice smoother starts, reduced tool changes, and cleaner holes when drilling through tough metals and plastics. The combination of cobalt tooling and a practical storage solution aims to provide dependable performance in a variety of tasks, without asserting guarantees for every situation.