Daniyel Firestone

Daniyel Firestone


Dynamics of Dispersing Blades

Daniyel Firestone is the President and owner of Norstone, Inc. since 2000. She started with the company in 1992. She has a BS from Temple University, an MBA from Humboldt State University and 29 years of experience working with particle size reduction, grinding, grinding media, dispersion and mixing equipment including blades. 

Norstone, Inc. is the inventor of the Polyblade with Teeth and Radius Scoops.  The company is located in Bridgeport, PA and was established in 1982 by her father, Sam Firestone, who is now a healthy 94. She enjoys talking and consulting with customers on the topics of blades, media, milling, mixing and how to improve the manufacturing process.

Her daughter Molly Howard and son-in-law Chris Howard are now part of the business as well.