For over 100 years, Sunnen has built a global business around delivering the highest levels of precision to our customers. Combining a robust distribution network with industry-leading …

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

For over 100 years, Sunnen has built a global business around delivering the highest levels of precision to our customers. Combining a robust distribution network with industry-leading …

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 …

Today, Sunnen is the exclusive provider of automated bore lapping solutions. Sunnen’s patented machine uses a tool known as a lap, which resembles a honing mandrel but with grooves …

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

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

Sunnen offers an extensive line of honing machines and accessories for the automotive engine building market. High-performance engine shops and production engine rebuilders around the …

Oct 7, 2025 · In the world of precision manufacturing, achieving flawless bore finishing is paramount. Sunnen Products Company, a global leader in the field for over a century, …

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