In 1964 Herbert and Sonja Sonnenberg started their own business in the golden city of Pforzheim.
In 1974 the posititve development necessiated the move to larger premises to Keltern.
In 1997 the sons Uwe and Frank Sonnenberg took over the management of the company.
As a family-owned business we are manufacturing at the vintage villages of Dietlingen and Ellmendingen.
These rural places are surrounded by splendid vineyards and fields. There are old framed houses in our neighbourhood with excellent wine taverns and restaurants, where you are tempted to stop.
In this area where the swabian diligence is to be found we exclusively manufacture diamond and boron nitride tools in many shapes and dimensions on the basis of high technical efforts and the knowledge gathered during many years of experience.
We offer the most extensive range of diamond and boron nitride tools, featuring highest quality standards at a reasonable price.
As a leading manufacturer of diamond files we have taken a firm position in the competitive field due to a constant and precise manufacturing quality. Our readiness to deliver and our reliability with regard to order handling are a matter of course, the purchase of diamonds is a matter of trust ¨C and, therefore, a great number of customers place their confidence in our firm.
In order to have also in future a market orientated fabrication, we wish to be your partner for all questions and concerns and we are sure to be able to solve your problems.
