70+ Years of
Fast, Custom, Reliable Tooling

Diamond Die blends advanced machining with hands-on craftsmanship to create custom tooling, crimping applicators, dies, hand tools, hydraulic tools and precision machining solutions that are designed to deliver exactly what you need including speed, and accuracy, without interruption, and are built to last.

Asian female engineer use vernier calipers to measure metal parts

Built on Speed, Service, and Precision

From the beginning, our focus has been simple: deliver exactly what manufacturers need, faster than anyone else. Standard applications, tight deadlines, complex applications, small runs, and unique requests are all part of what we do and the problems we solve, including:

  • Short lead times (Typically 3–4 weeks)
  • Custom tooling for standard, unique, non-standard applications
  • Direct communication (no layers of account management)
  • A team that understands wire harness production

Woman-Owned. ISO Certified.Nationally and Internationally Trusted

We meet ISO 9001 quality standards and are certified as an SBA WOSB, giving customers confidence in both our craftsmanship and our process. Our products are used nationwide across automotive, aerospace, EV, industrial, consumer electronics, and medical manufacturing. In addition, our products are used throughout North America, Central America and Europe.

Workers servicing machinery at the factory

Need a Part Fast?
Start With Reverse Engineering

Did you know that many of Diamond Die’s longest-standing relationships started with a single reverse-engineered part?