SEDIANAS Cobalt Drill Bit Set 29Pcs M35 HSS – 1/16 to 1/2 Inch

Meet the SEDIANAS Cobalt Drill Bit Set, a 29‑piece collection crafted from M35 cobalt high‑speed steel. This alloy blends hardness with heat tolerance to help keep your tooling productive as you work through tougher materials. While no drill bit can guarantee a perfect result in every scenario, this set is designed to support clean starts, steady cuts, and consistent holeds across a variety of projects.

Key features that matter in everyday projects

• M35 Cobalt Drill Bit: premium high‑speed steel with cobalt for enhanced heat resistance and longer tool life under demanding use.
• 135° split point design: self‑centering tip reduces wandering, enabling precise starts on soft and hard objects alike.
• Fully ground twist design: optimized flute geometry clears chips efficiently, lowering heat and friction for smoother cutting.
• Comprehensive range: 29 sizes from 1/16" to 1/2" to cover a wide set of hole requirements.
• Versatile applications: effective on hardened metals such as stainless steel and cast iron, plus hard plastics and woods.
• Includes storage: a durable metal index storage box keeps bits organized and ready for quick access.

Practical, real‑world use cases

• Ideal for metal frame work or brackets where precise, repeatable holes matter.
• Suitable for drilling through stainless steel, cast iron, or tough plastics with consistent results.
• Great for DIY repairs and hobby projects where dependable performance is valuable and downtime is costly.

Design notes: the 29‑piece set balances material quality with size variety, featuring a self‑centering 135° tip and a sturdy case to help you stay organized as you work. Results depend on material, speed, and technique, and this collection aims to offer a reliable range of options for common tasks.