The Best Apertures in The World
ARC has the only EDM equipment of its kind in the United States and the most talented engineers in the world, giving us the ability to produce apertures that are far superior to any you've ever relied on. Here are a few advantages:

• Customized apertures & strips to any specification
• Detailed micrographs of both sides of apertures
• NIST traceable certifications for diameter and circularity
• Unique serial numbers

Easier Than Ever
Replacing off-the-shelf aperture parts- and designing completely customized apertures is easier than ever before. Try our easy online system and learn how your business can benefit.

Standard OEM Replacement
With the most advanced equipment in the nation, ARC is positioned to deliver aperture parts with superior design and performance than those offered by existing OEM suppliers.

ARC Custom Apertures
For those interested in maximizing the cost-effectiveness of aperture replacement, completely customized apertures may be of interest.

How It Works
Using this site, you can specify standard OEM replacement settings or customize by selecting a combination of through-hole diameter/beam current values for the holes you use most.