SINJIN Diamond is a leading superprecision diamond tool manufacturer, with over 40 years of experience. We offer all kinds of information and technology needed in various areas of diamond tooling such as natural diamond, PCD, PCBN, etc.

SINJIN Diamond owns automated equipment needed in natural diamond, PCD and CBN, along with skilled professionals, and focuses on the production that requires superprecision machining, such as automobile, display, medicine, aerospace, and optics, through continuous R&D.

SINJIN Diamond offers customized solutions based on high credibility that satisfy customer needs to create new value.

SINJIN’s goal is to always provide solutions that exceed customer’s expectation. To create products that satisfy customer’s different needs, we develop a perfect production management system from product design to manufacturing and inspection. SINJIN’s goal is to always provide solutions that exceed customer’s expectation. To create products that satisfy customer’s different needs, we develop a perfect production management system through product design, manufacturing, and inspection.