Precision Machining Services for Wire Harness Tooling and OEM Manufacturing
We provide full-service precision machining with in-house capabilities support tooling manufacturing, replacement components, prototype development, and custom part production for wire harness manufacturers, OEMs, and industrial customers.
Reliable Turnaround: Typically three to four-week lead times, used consistently across all tooling and machining services.
Michigan-Based Manufacturing: All work performed in-house at our Clinton Township, Michigan facility.
Designed for High-Precision Manufacturing
Whether you need prototype components or production-run machined components, Diamond Die & Mold delivers fast, consistent results designed to fit your process, your equipment, and your production volume. As a Michigan-based precision machining shop with 70 years of manufacturing experience throughout Michigan and across the United States.
- Wire EDM – tight tolerances, complex cuts, precision surfaces
- Precision machining for die components and tooling
- Precision Surface and Blanchard grinding
- Milling
- Polishing
- Heat treating
- Laser etching
- Small batch black oxide
If you are weighing your options and uncertain about how best to proceed, we are here for you and ready to help.
Wire EDM Machining Services for Tool and Die Components
Diamond Die & Mold provides Wire EDM (Electrical Discharge Machining) services for tool and die components, crimping tools, prototype parts, and custom precision components. Wire EDM uses controlled electrical spark erosion to cut hard metals along intricate paths without applying mechanical force, delivering clean, burr-free edges and highly detailed components.
Wire EDM is essential when traditional machining methods fall short. It creates hardened components that would be impossible to mill or grind conventionally, allowing extremely tight tolerances and sharp internal corners critical to tool performance and longevity. Because the process doesn’t rely on a cutting tool, it’s ideal for hole drilling, high-detail work, and any material with high electrical conductivity.
Common Wire EDM Applications:
- Perishable tooling with tight tolerances and extended service life
- Die components with sharp internal corners and precision geometries
- Prototype parts for rapid development cycles
- Small parts and intricate features
- EV component tooling and terminals
- Custom components for hardened materials
Our Wire EDM process manufactures tooling to ±0.0004 inch accuracy for production components, with measurement capability down to ±0.0001 inches for inspection and validation. Whether you need Wire EDM for new tooling manufacturing, replacement components, or prototype iteration, our team delivers precision results with fast turnaround.
Custom Surface Grinding, Blanchard Grinding, and Jig Grinding Services
Diamond Die & Mold provides advanced surface and blanchard capabilities for critical component finishing.
Surface Grinding
Our surface grinding achieves flat, parallel, radiused, and square surfaces on critical parts. Using precision abrasive processes, we eliminate deviations and deliver impeccable flatness and surface quality that satisfies stringent tolerances. This is essential for producing components in industries where precision is non-negotiable.
Blanchard Grinding
Our Blanchard grinding capabilities handle heavier stock removal and larger flat surfaces, ideal for die components, mold bases, and larger tooling plates.
Together, these grinding capabilities give us the flexibility to handle everything from large flat plates to intricate high-tolerance features on the same components.
CNC Machining Services for Precision Components
Our CNC machining and milling capabilities cover a broad range of precision manufacturing needs, from prototype components through production runs. Multi-axis milling handles complex geometries and features that require multiple setups on conventional machines. This translates to faster turnaround, tighter tolerances, and better repeatability across production runs.
Every CNC-machined component leaves our facility with the same commitment to accuracy and quality control that defines our precision machining services.
Prototype Machining and Rapid Prototyping
Rapid, accurate prototypes are essential in today’s manufacturing environment where speed-to-market defines competitive advantage. Diamond Die & Mold’s prototype machining capabilities help you move from conceptual designs to tangible prototypes quickly.
Our prototype machining process leverages Wire EDM, CNC machining, precision grinding, and our full machining capabilities to produce components with tight tolerances suitable for testing, validation, and approval. Common prototype projects include:
- Custom crimping tool components
- Die inserts and mold components
- EV component prototypes
- Small-batch production for design validation
- Tooling for new product development
- Custom parts for R&D teams
Because Wire EDM doesn’t require custom tooling, we can iterate on prototype designs quickly without sacrificing accuracy or investing in production tooling before design validation is complete.
Materials We Machine
Diamond Die & Mold’s precision machining services handle a wide range of materials, particularly hard and specialty metals commonly required in wire harness tooling and precision component manufacturing:
- Hardened tool steels (A2, S7, D2, and other tool steel grades)
- Tungsten carbide
- Inconel and other nickel-based alloys
- Titanium
- Copper and brass
- Aluminum
- Stainless steel
- Other steels including but not limited to A36, 4140, 12L14, 1018, etc.
Because Wire EDM relies on electrical discharge rather than mechanical force, we can machine extremely hard or brittle materials without introducing stress, deformation, or tool wear. This makes our capabilities well-suited for advanced alloys and hardened metals used in automotive, aerospace, medical, and EV component manufacturing.
Precision Machining for
Automotive, EV, Aerospace, and Medical Manufacturing
Diamond Die & Mold’s precision machining services support manufacturers throughout Michigan and across the United States. As a Michigan-based machine shop, we understand the demands of American manufacturing and the importance of a domestic supply chain for buyers focused on reshoring, defense, or supplier diversity requirements.
Automotive and EV Manufacturing
Precision machining for automotive wire harness tooling, EV battery component tooling, and high-voltage terminal manufacturing. Michigan is the heart of American automotive manufacturing, and our facility supports OEMs and Tier 1 suppliers across the region and nationwide.
Aerospace
High-precision machined components for avionics wiring tooling and aerospace-grade manufacturing applications. ISO 9001:2015 certification supports aerospace supplier requirements.
Medical Device Manufacturing
Precision machining for miniature terminal tooling and medical device wiring components, backed by ISO 9001:2015 quality certification and domestic supply chain reliability.
Industrial and Heavy Equipment
Custom machined components for industrial power distribution, heavy equipment wiring, and OEM manufacturing across Michigan and the broader Midwest manufacturing corridor.
Consumer Electronics
Precision components for high-volume electronics manufacturing where consistency and tight tolerances protect product quality.
Wire Harness and Cable Assembly Manufacturing
Custom tooling, applicator components, and precision parts for wire harness OEMs and their suppliers throughout Michigan and the United States.
Reverse Engineering and
Full-Cycle Machining Support
Send us your worn or broken part and we handle the entire process from reverse engineering through final machining, delivering replacement components to OEM standards without vendor handoffs. Most projects are completed in under four weeks.
Explore Additional
Diamond Die Services
Reverse Engineering
Replacement tooling built from your worn part when prints don't exist. Delivered in under four weeks.
Perishable Tooling
High-precision replacement tooling built for repeat use in high-volume production.
Crimp Analysis
Terminal crimp cross-section analysis to validate quality and reduce defects.
Crimping Applicators
Hi-Speed, Hydrofeed, and Heavy-Duty applicators matched to your terminal and production needs.
Not Sure Which
Machining Process Is Right?
Send us your part specs, drawings, or a sample and we’ll recommend the right combination of machining services for your application. No guesswork, no long quote cycles, just a direct answer from our engineering team.