01 / Build-to-Print1
100% Made to Your Drawings
We manufacture strictly to your drawings. No design changes.
No design changes
KOOSEI
Built for Test Handlers
KOOSEI manufactures custom precision spare parts and tooling for semiconductor test handlers and automation equipment — strictly to your drawings.
Why KOOSEI
What We Do
KOOSEI manufactures custom precision spare parts and tooling for semiconductor test handlers and automation equipment — strictly to your drawings.
Learn more
02 / Confidentiality2
NDA Available on Request
Your drawings and specifications are handled confidentially. We can sign an NDA before reviewing them.
Drawings handled confidentially
03 / Core Processes3
Wire EDM & Precision Grinding
Five core processes focused on hard materials: grinding, wire EDM, sinker EDM, tungsten carbide machining and precision drilling.
Five focused processes
Core Processes
Grinding, Wire EDM, Sinker EDM
Five core processes focused on hard materials — tungsten carbide, hardened tool steel and stainless steel.
Grinding
Flat and precision surface grinding on hardened materials.
Wire EDM
Precision contour and micro-feature cutting.
Sinker EDM
Complex cavities, micro slots and sharp internal corners.
Common questions
How we work with your drawings
Answers to the questions buyers usually ask before sending a drawing.
Still have questions? Send us a message and we will reply by email.
Contact
Send us your drawing or requirements
Tell us what you are sourcing. Send your drawing or requirements and we will reply by email.
Email
info@kooseiparts.com
Phone
+86 139 2628 5356
Office
Hours
Inquiry intake
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