Jonesville Tool & Manufacturing offers complete, ultra-precision lapping and polishing services, sizing a wide variety of metals and other materials for applications ranging from industrial to scientific.

We are equipped with state of the art lapping machining systems, allowing us to take on virtually any flat surfacing application. We complete the work precisely and quickly, with little or no stress introduced into the part. Our polishing process controls the surface finish; in combination with our lapping process, this assures thickness identity and parallelism, and flatness of substrates.

Jonesville Tool & Manufacturing custom-designs our lapping and polishing processes for each material type and required physical dimension. We have a long-standing reputation for our high quality work and on-time results. We continually improve our processes and production, ensuring that we meet the standards of quality around the globe.

Not Your Average Contract Manufacturer!

On-time delivery reports just came out and you guys are at 100% shipping to all plants. I want to thank you for this. Keep up the good work and let me know if there is anything I can do to help you guys out.


At JTM, we know that our reputation is based on the quality of our parts and our ability to meet delivery dates. That’s why we offer our clients peace of mind in the form of on-time, defect-free parts, every time.


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Jonesville Tool & Manufacturing – Your Contract Manufacturer for Life 517-849-2923