TRUXON® nACo® Cobalt Drill Bits: Built for Heat, Hard Steel and High Performance

Date: 19-11-2025

Tool Reviews

When you’re drilling stainless or hardened steel, ordinary HSS bits struggle. Excess heat, dulled edges and slow progress all cost time. TRUXON nACo Cobalt Drill Bits are engineered to fix that—pairing M35 cobalt steel with an advanced nACo nano-coating for exceptional durability, speed and heat resistance on New Zealand job sites.

TRUXON Drill Bits

What Makes nACo^® Coating So Effective?

nACo is a high-performance AlTiSiN-based nano-coating designed for modern precision machining. It forms a hard, ultra-smooth and extremely heat-resistant barrier over the drill bit, giving you proven benefits on the job:

Superior heat stability – nACo maintains hardness at extreme temperatures, performing reliably in stainless steel, carbon steel and work-hardened metals where uncoated bits quickly soften.
Exceptional wear resistance – Its nano-structure protects the flutes and cutting edges from abrasion, extending tool life well beyond standard coatings.
Low friction for smoother cutting – Reduces drag, clears chips more effectively and minimises heat build-up, especially helpful when drilling stainless or alloy steels.

nACo coatings are commonly used in precision milling, drilling and forming tools worldwide. They are valued for supporting high-speed and even dry machining, making them ideal for real-world conditions where job sites often involve tough alloy steels, stainless handrails, structural steel and fabrication work.

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Where nACo^® Is Commonly Used

nACo’s nano-hardness, thermal stability and low-friction characteristics make it suitable for a wide range of industry applications that mirror real use cases:

Milling & Drilling Tools

Ideal for cutters and drills working on carbon steel, stainless steel (including 316), cast iron and alloys, especially in high-speed or heat-intensive conditions.

Forming & Shank Tools

Used on forming tools, reamers and shank components exposed to abrasion and repeated stress.

Aerospace, Automotive & High-Stress Components

Provides oxidation and thermal protection for components operating under heavy load or high temperatures.

General Industrial Wear Protection

Used across industries for enhancing durability on steel, aluminium and titanium parts. Its nano-structure makes it suitable for high-temperature dry machining up to around 1100°C, outperforming standard coatings by a wide margin.

TRUXON^® Cobalt + nACo^®: A Proven Combination

TRUXON builds each bit from M35 cobalt steel, known for its strength and heat resistance in hard metal drilling. Adding the nACo nano-coating enhances its surface hardness and cutting efficiency, creating a bit that runs cooler, stays sharper and remains stable under high load.

This combination makes the range ideal for stainless steel, hardened steel, cast iron and high-strength alloys commonly used throughout construction and engineering.

Key Features TRUXON^® has Tailored for Professionals

nACo blue nano-coating for cutting speed and heat control
5-point cutting tip (3.0mm–13.0mm) for fast starts and cleaner penetration
Triangle shank (4.0mm–13.0mm) to prevent chuck slippage under torque
Twin-packs for 1.0mm–4.0mm sizes for high-use small bits

These features give TRUXON bits a controlled, efficient feel—especially when drilling stainless and other demanding materials.

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Where TRUXON^® nACo^® Bits Perform Best

Perfect for:

Stainless fabrication and fit-outs
Structural steel and on-site installation
Engineering and machinery maintenance
Drilling cast iron or alloy components

If you frequently burn through standard bits, TRUXON’s cobalt + nACo combination delivers a noticeable jump in performance and lifespan.

Why Choose TRUXON^® nACo^® Cobalt Drill Bits?

TRUXON focuses on delivering truly professional-grade tools. The nACo Cobalt Drill Bit range provides:

A cobalt steel core built for hard metals
An advanced nano-coating proven in industrial machining
Strong, practical design features that improve grip, speed and durability
Consistent performance across NZ’s toughest materials

For builders, fabricators, engineers and serious DIYers, TRUXON nACo Cobalt Drill Bits offer the reliability and cutting performance needed for demanding work.

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SHOP TRUXON COBALT DRILL BITS NOW

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