In March 1996, the expanded SDA Plus Series of synthetic saw diamond abrasives was launched. This Series not only has an extended scope of application, but also contains two major enhancements-the introduction of PPC (particles per carat) specifications and the introduction of the Saw Grit Indicator System to assist the diamond toolmaker in the selection of grit product.

The eight products in the SDA Plus Series are manufactured  using an exclusive synthesis process which utilizes cobalt-based alloys. The first SDA products were manufactured over 30 years ago, and continual refinements have been made to the synthesis techniques since that time.

Diamond particles derived from classic SDA synthesis are essentially cubo-octahedral, with a distinctive characteristic structure. It is considered that this structure can influence the wear behavior by affecting the manner in which these crystals break down in applications. One of the distinguishing features of crystals from this synthesis process is the presence of ordered arrays of metal inclusions within each particle. Within the SDA Plus Series, arrange of products is offered, differing progressively in their properties, which allows the user a wide choice from which to manufacture tools.