• Coatings and Surface Treatments Offer Longer Tool Life

• Increase Production Rates • Improve Cutting Characteristics



Coating: TiN (Titanium Nitride)

Appearance: Gold


General purpose coating; ideal for threading of iron-based materials; offers resistance to abrasive materials and adhesive wear.

Coating: TiCN (Titanium Carbonitride)

Appearance: Blue-Gray


High hardness; good wear resistance; very tough coating for difficult-to-machine steel alloys when tools encounter excessively stressed cutting edges, and highly abrasive and/or gummy materials such as cast iron, brass and aluminum alloys; use when high feed and speed rates are desired.

Coating: CrN (Chromium Nitride)

Appearance: Silver-Gray


Resists adhesive wear, corrosion and oxidation; suitable for machining titanium and copper; harder than conventional chrome plating.

Coating: TiAlN (Titanium Aluminum Nitride)

Appearance: Violet-Gray


A multi-layered coating ideal for carbide and high speed tooling; excellent oxidation resistance allows high speed and semi-dry or dry machining; best suited for threading cast iron, stainless steel, nickel-based high temp. alloys, and titanium alloys; heat resistant.

Coating: Amphorex™ DLC (Diamond-like Carbon)

Appearance: Charcoal Gray/Black


High lubricity and little adhesive wear (low friction); ideal for applications with adhesive wear and seizure problems (e.g. poor lubrication); high lubricity allows dry machining.

Coating: TiAlN + Amphorex™ DLC (Titanium Aluminum Nitride + Diamond-like Carbon)

Appearance: Black-Gray


Low coefficient of friction combined with high micro-hardness; offers longer tool life through enhanced wear properties; ideal for low lubrication applications and high temperature uses.

Coating: AlCrN (Aluminum Chromium Nitride)

Appearance: Silver-Gray


High hardness with extraordinary wear resistance under extreme stress; AlCrN’s unique combination of hardness and heat resistance permits high performance; recommended for finishing exotic materials, titanium, hastelloy, etc., gray and ductile iron parts, as well as applications in mild and high carbon steels.

Coating: ZrN (Zirconium Nitride)

Appearance: Light Gold/Pale Yellow


Extremely hard all-purpose coating with excellent wear resistance; exceptional abrasion resistance and lubricity; extreme high hardness values; ideal for aluminum and non-ferrous applications.




Surface Treatment: N (Nitride)

Appearance: Dark Gray-Black


A very hard, shallow surface treatment; works well on cast iron, die cast materials, magnesium, bakelite, plastic, zinc; recommended with high-wear, abrasive machining.

Surface Treatment: O (Oxide)

Appearance: Black


Produces a thin black iron-oxide coating that enhances lubricity and reduces friction; deters chip welding and galling by acting as an insulator between tool and workpiece; recommended for use in ferrous materials, low carbon material, leaded steel, and gummy materials.

Surface Treatment: N + O (Nitride + Oxide)

Appearance: Dull Flat Black


Combination of both treatments listed previously, affording the characteristics of both. Has anti-galling properties with high wear resistance. Recommended for highly abrasive and penetration-resistant materials. Not suited for soft materials like (pure) aluminum, brasses, magnesium and similar non-ferrous materials.

Contact North American Tool’s Customer Service Dept. for additional recommendations and coatings/surface treatments not shown.

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