Donald Sommer

Using the production plant of his Ideal Carbide Die Company as a proving ground, Ingolf Sneva pioneered the use of diamond mandrels. Patent refining and constant testing led Sneva to form and market a line of diamond bonded carbide shank mandrels with his own special vitreous metal (VM) bond. Today, that initial line of products has evolved into Diagrind, Inc. In 1975, father and son Peter and Donald Sommer purchased Diagrind from Sneva and dedicated themselves to the same standards of quality and innovation upon which the company was founded. Through the years under Sneva and the Sommers, Diagrind has kept pace with the rigorous demands of the internal grinding industry by adding an entire line of Cubic Boron Nitride (CBN) mandrels to complement the existing diamond line. Now working with a variety of vitreous metal, metal, resin, vitrified and plated bond systems, Diagrind can accommodate the specific needs of customers with standard and specially designed internal grinding tools. Today, Diagrind continues to apply the tradition of precision and innovation upon which it was founded. Current president Donald Sommer and the dedicated employees behind the Diagrind name are committed to the task of remaining on the cutting edge of the internal grinding industry.