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High Precision Die Punch for Progressive & Precision Stamping
High Precision Die Punch for Progressive & Precision Stamping
High precision die punch made of tungsten carbide and finished by PG profile grinding. Designed for progressive dies and precision stamping with excellent wear resistance and dimensional accuracy.
Material And Process
High Precision Die Punch is made of premium tungsten carbide and finished by advanced PG profile grinding, ensuring outstanding dimensional accuracy, edge quality, and long service life.
Applications
This die punch is specifically designed for progressive dies and high-precision stamping applications, where tight tolerances, stable performance, and wear resistance are critical. PG profile grinding allows complex punch profiles, sharp cutting edges, and consistent repeatability, making it ideal for both standard and non-standard punch designs
Key Features

All perfora are produced strictly according to customer drawings. Material selection optimized based on application conditions such as stamping material, production volume, and tool life requirements.


Technical Capabilities
| Parameter | Typical Values / Notes |
|---|---|
| Dimensional accuracy | ±0.001 mm |
| Surface roughness (Ra) | 0.1 – 0.2 μm typical |
| Repeatability | ±0.002 mm |
| Minimum feature size | 0.1 mm edge/slot |
| Maximum part size | Up to 400 mm × 200 mm × 150 mm (depends on machine model) |
| Max material hardness | HRC 68 (tungsten carbide, tool steel) |
Key point: PG excels at small, delicate, or thin-walled parts without deformation.
Clean and Accurate Profile Geometry, Precise Radius (R) Control and Smooth Surface Finish
Every PG grinding punch is clean and accurate profile geometry, precise radius (R) control, and smooth surface finish. They are important for reducing wear, improving punch life, and ensuring consistent cutting quality during high-volume stamping operations.
FAQs
We typically achieve ±0.002 mm tolerance with PG optical profile grinding.For simpler geometries or specific critical features, tolerance can reach to ±0.001mm. Final capability depends on part geometry, material, and profile complexity.
We typically grind radii as small as R0.02 mm (tool steel) and R0.01 mm (carbide).
All sharp corners are produced with a controlled micro-radius for durability and performance.
Yes. We specialize in complex and asymmetric PG-ground profiles, including compound curves and non-symmetrical shapes.
Carbide (Tungsten carbide) KR466,CD650,KD20
SKD11 / D2
SKH9 / M2
DC53
Powder steel
Yes. We regularly support connector molds and precision stamping dies, including fine-pitch and high-wear punch applications.
We accept UG,CAD,DWG files are preferred for complex PG profiles.
Normally 2-3days for production. The actual lead time will according to your design and quantity.
We have no strict MOQ, prototype & small batches are welcomed.
Customer drawings are treated as confidential, used only for production, and never shared with third parties. NDAs are available upon request.
PG optical profile grinding provides significantly higher profile accuracy and repeatability than standard grinding, especially for parts with complex contours and functional edges.
Compared with standard grinding, PG grinding offers:
Superior profile accuracy for curves, angles, and asymmetric shapes
Direct optical profile verification during grinding
Cleaner, sharper cutting edges with controlled micro-radius
Better consistency across multiple identical parts
Standard grinding is well suited for straight surfaces and simple geometries.
However, when the function of a punch or insert depends on precise contour shape, PG optical profile grinding ensures the profile matches the design intent exactly.
For precision molds, connector tooling, and fine-pitch stamping applications, PG grinding often results in more stable performance and longer tool life.







