Nissin Precision Machines Co., Ltd. provides integrated support from prototype processing of precision press parts to die manufacturing and full-scale mass production.
Below is an example of a punch used in dies for electronic components.

▪ Punch Specifications
- Machined Area: Cutting edge (straight square profile + corner radius R)
- Material: Cemented carbide
- Tolerance: ±0.001 mm
- Machining Equipment: Profile grinding machine
▸ About Profile Grinding
Profile grinding enables ultra-precise contour finishing of complex geometries, ensuring dimensional accuracy and edge sharpness essential for high-precision blanking applications.
▸ Digital Profile Grinding Machine DPG-150
Advanced digital profile grinding technology further enhances repeatability, measurement accuracy, and automated processing capability.

▪ Benefits of Ultra-High-Precision Finishing
- Extremely high reproducibility of press products
- Extended die service life

◎ About Nissin Precision Machines
Since its founding in 1957, Nissin Precision Machines Co., Ltd. has accumulated experience in the production of over 7,000 die sets.
The combination of proven expertise and advanced equipment may provide the solution to your precision die challenges.
Please feel free to contact us for consultation.

[Contact Information]
Nissin Precision Machines Co., Ltd. – Head Office
〒146-0095, 2-29-21 Tamagawa, Ota-ku, Tokyo 146-0095, Japan
TEL: +81-3-3758-1901
E-mail: gn.info@nissin-precision.com
Website: https://www.nissin-precision.com/products/precisiondie/