With our extensive global network and the industry's largest selection of honing machines, we provide tailored solutions for clients worldwide. As the largest integrated honing system and deep hole drilling solutions supplier, we operate cutting-edge technology centers across the globe.

Shanghai Sunnen Mechanical Co., Ltd. serves as our Asian Technology Center, and is one of four manufacturing plants that has over 30 years of experience. With a team of over 90 employees, we provide horizontal and vertical honing machines, fixtures, tools, abrasives, coolants, customized automation systems, and application solutions. In addition, we offer deep hole drilling & skiving and roller burnishing machines and the cutting tools, inserts and accessories to support them. Regardless of your bore sizing challenge anywhere in the world, we have the perfect "Sunnen Solution" for you!