Carbide Tool Maker Micro 100 Grows into Meridian’s Biggest Manufacturer

The $15 million-a-year business sells from a catalog of 12,000 carbide tools to more than 600 U.S. distributors and others in 40 countries.

Carbide is 90 percent tungsten, one of the hardest metals on the planet. Micro 100 has dozens of machines — Dale Newberry says it’s more like hundreds, but he’s lost count — most with grinding wheels coated in industrial diamond, the only substance known that will cut tungsten. The result is a cutting tool that Newberry says will stay sharp 10 or 20 times longer than steel.

Micro 100 makes a miniature end mill the diameter of a human hair for manufacturing optical and medical equipment. Its most expensive custom carbide tools sell for more than $1,000.

Newberry gestures toward his twice-expanded shop stuffed wall-to-wall with machines, some worth nearly a half-million dollars.


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