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Our Coatings
Standard Coatings
To optimize your CNC machining results and maximize both your part finish and tool life, opt for one of Helical Solution's premier coatings: Zplus, Aplus, Tplus, and Dplus. Each coating is optimized for a specific material group, and is designed specifically to provide superior tool hardness and strength, and aid in the chip evacuation process by increasing lubricity within flute valleys.
Dplus
![Image](https://harveyperformance.widen.net/content/armgbeovx6/png/Helical_Dplus_Coating.png?position=c&color=ffffff00&quality=80&u=rghc4j">)
Dplus delivers unmatched tool life in non-ferrous applications. Featuring a tetrahedral amorphous carbon (taC) bond structure, this coating offers an extremely low coefficient of friction and exceptionally high hardness, allowing it to resist abrasion while maintaining a sharp cutting edge.
Max Usage Temp:
842° F
Microhardness (HV 0.05):
5000+ (50 Gpa)
Coefficient of Friction:
<0.10
Coating Color:
Charcoal
Materials:
Aluminum Alloys, Composites, Graphite, and Other Non-Ferrous Alloys
Nplus
Nplus is specially engineered for optimal performance and extended tool life in aluminum alloys and non-ferrous materials, especially high-silicon aluminums and copper alloys. Its high hardness and excellent edge retention provide improved wear resistance.
Max Usage Temp:
2,012º F
Microhardness (HV 0.05):
4079 (40 GPa)
Coefficient of Friction:
0.45
Coating Color:
Light Grey/Silver
Materials:
Wrought Aluminum, Cast Aluminum, Graphite, and Other Non-Ferrous Alloys
Zplus
Zplus provides higher hardness, lubricity, and abrasion resistance. Specifically engineered for aluminum applications, it is also optimal for other non-ferrous materials. Holds up well in abrasive materials and reduces the chance of built-up-edge in softer, gummy alloys.
Max Usage Temp:
1,110º F
Microhardness (HV 0.05):
2243 (22 GPa)
Coefficient of Friction:
0.40
Coating Color:
Light Gold
Materials:
Wrought Aluminum, Cast Aluminum, Graphite
Tplus
Tplus is an ideal choice for increased wear resistance and longer tool life in rigid, vibration-free machine setups. Tplus excels in a wide variety of ferrous and difficult-to-machine materials including inconel, stainless steel and high hardness materials up to 65 Rc.
Max Usage Temp:
2,192º F
Microhardness (HV 0.05):
4487 (44 GPa)
Coefficient of Friction:
0.35
Coating Color:
Copper
Materials:
Inconel, Stainless Steel, Hardened Steels, Alloyed Steels
Aplus
Aplus allows for high temperature resistance, decreased wear, and improved tool life. Proven to work in high speed machining and dry conditions, these benefits are seen in a wide range of ferrous materials, titanium materials, and exotic alloys.
Max Usage Temp:
2,012º F
Microhardness (HV 0.05):
4079 (40 GPa)
Coefficient of Friction:
0.45
Coating Color:
Black/Grey
Materials:
Steel, Stainless Steel, Exotic Materials, Titanium
Experience the Benefits of Dplus Coating!
Experience the Benefits of Helical's New Dplus Coating!
Dplus is our newest innovation for superior tool life in non-ferrous alloys. Its tetrahedral amorphous carbon (taC) bond structure represents an advanced leap, delivering remarkable enhancements in tool life compared to conventional DLC coatings.
Featuring an exceptionally low coefficient of friction and extremely high hardness, this coating maintains a sharp cutting edge, while still resisting abrasion, making it outperformed only by CVD diamond itself. Experience outstanding tool life in materials ranging from aerospace aluminum all the way to graphite or abrasive composites, with this new premium coating.
Explore Dplus Tools:
3 Flute Aluminum Ball Variable Pitch 40° Helix
3 Flute Aluminum Corner Radius Variable Pitch 35° Helix Chipbreaker
3 Flute Aluminum Corner Radius Variable Pitch 40° Helix
3 Flute Aluminum Square Variable Pitch 40° Helix