Business Details
50+ Years
experience
Precision Machining and Honing Services in Novi, MI
Since 1955, Detroit Diameters has established itself as a leader in precision internal honing and CNC machining. Founded by Harold Spitery in Southfield, Michigan, our family-owned business has evolved to serve the aerospace, automotive, defense, and industrial sectors with unmatched expertise. Our commitment to quality is rooted in tradition, driven by continuous investment in advanced machinery and precision gaging to ensure every component meets exacting specifications. With a mechanical engineer on staff since 2006, we collaborate closely with clients to deliver tailored solutions for complex projects.From small prototypes to large-scale production, we prioritize customer satisfaction through meticulous attention to detail, competitive delivery times, and a philosophy of exceeding expectations. Our legacy of innovation and reliability has been passed through three generations, ensuring we remain a trusted partner for industries requiring precision-critical components.
Services
Precision Internal Honing
CNC Machining
Aerospace Material Machining
Prototype Services
Micro-Finishing
Details
- Year established: 1955
Highlights and features
- Family-owned expertise spanning three generations since 1955.
- Investment in CNC machining and precision gaging ensures quality standards.
- Mechanical engineer on staff since 2006 for specialized project collaboration.
- Serves diverse industries from one-man shops to Fortune 500 companies.
- Focus on precision honing for complex components like engine cylinders and valves.
Services
Precision Internal Honing
Specializing in ultra-precise honing for blind holes, tandem bores, and thin-wall parts. Our process achieves exact roundness, straightness, and surface geometry for hydraulic components, engine cylinders, and aerospace parts. Capable of diameters from 0.060" to 28" with stroke lengths up to 96".
CNC Machining
Producing complex components from exotic alloys and conventional materials using advanced CNC technology. Focus on tight tolerances and micro-finishing for aerospace, defense, and automotive industries. In-house fixture manufacturing supports prototype to production runs.
Aerospace Material Machining
Machining high-temperature alloys and specialized materials for aerospace applications. Expertise in meeting stringent industry standards for precision components like fuel injectors, turbine parts, and structural elements.
Prototype Services
Supporting preproduction ramp-up and low-volume runs with rapid turnaround. Custom tooling and fixture capabilities enable efficient prototyping for automotive, defense, and industrial clients.
Micro-Finishing
Achieving ultra-smooth surface finishes through honing processes. Enhances performance and durability of components like hydraulic cylinders, pistons, and precision valves.
Questions
What is precision internal honing?
Precision internal honing is a machining process that achieves exact bore geometry, roundness, and surface finish for critical components like engine cylinders and hydraulic parts.
What industries do you serve?
We serve aerospace, automotive, defense, tooling, and industrial equipment sectors with precision machining and honing solutions.
Do you handle custom or prototype projects?
Yes, we offer prototype development, short-run production, and custom tooling to meet unique client specifications.
How do you ensure quality?
We use advanced gaging systems and employ a dedicated mechanical engineer to verify all operations meet blueprint specifications.
What materials do you work with?
We machine exotic high-temperature alloys, conventional metals, and specialized materials for aerospace and industrial applications.
