For nearly 100 years, Sunnen has built a global business around delivering the highest levels of precision to our customers.

For nearly 100 years, Sunnen has built a global business around delivering the highest levels of precision to our customers.

Manufacturers around the world rely on Sunnen to engineer incredible performance for their most critical parts. We’re ready to get to work for you. Fill out the form below and one of our representatives will …

Sunnen honing abrasives increase performance, whether you use a Sunnen system or other honing equipment.

For nearly 100 years, Sunnen has built a global business around delivering the highest levels of precision to our customers.

Sunnen is the only company in our industry to offer a standard three-year warranty on every machine we make. We also offer machine installation, service and preventative maintenance to keep your …

Sunnen's products are built to last, can be found in thousands of tool rooms worldwide, and come with the best technical and customer support in the industry. Browse our selection of products below.

The best way to check the accuracy of honed parts is with Sunnen gages.

Stay informed, streamline your operations, and get the most from our products and services. Sunnen catalogs are the best resource for finding parts, building parts, and learning how to optimize your …

Sunnen is a global name in automotive engine Honing. Over nearly a century, we’ve perfected the art of honing automotive engine parts. From engine blocks to connecting rods, we understand the impact …