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About Us

Our Mission...

is to provide our customers with the best performing diamond tools available in the stone and surfaces industries. Our sales and engineering professionals have developed and tested products in every category - from blades and core bits to grinding wheels and polishing pads - to bring you the most effective tools on the market today.

Our products are fully supported by a wealth of combined knowledge and expertise in the Rockstar team:

  • In-house metallurgy and manufacturing experts
  • Knowledgeable and experienced field sales personnel
  • Highly responsive customer service staff

Rockstar is a division of Concut, Inc., a U.S. owned and operated manufacturer of high-quality diamond tools and equipment since 1946. Based in Kent, Washington, Concut offers a comprehensive selection of products for the cutting, coring and grinding of concrete, asphalt, masonry, stone and tile.

Throughout our company, we have a deep appreciation for how diamond tools should be made, as well as for how they should perform on the job. We are absolutely committed to helping our customers in any way that we can - whether that be through products, service, education or training. Please call us and we'll welcome the opportunity to work with you.