Reliable Precision Subcontractor for Tool Shops
Precision PG Punch for Mold and Die Applications
Precision PG Punch for Mold and Die Applications
We provide high-precision PG (profile grinding) machining for custom punches and inserts.
Our PG punch are ideal for mold and stamping applications that require tight tolerances, smooth surface finishes, and repeatable accuracy.
We provide high-precision PG (profile grinding) machining for custom punches and inserts.
Our PG punch are ideal for mold and stamping applications that require tight tolerances, smooth surface finishes, and repeatable accuracy.
Custom PG-Ground Punch
- Stepped, profiled, and special-shape punches
- Forming punches for progressive stamping dies
- PG-ground punches for tight dimensional control
Capabilities
| Item | Capability |
|---|---|
| Process | PG Optical Profile Grinding |
| Tolerance | ±0.001 ~ ±0.002 mm |
| Surface Finish | Ra 0.2 / 0.4 |
| Materials | SKD11, DC53, SKH-9, Tungsten Carbide |
| Heat Treatment | Soft & hardened |
| Key Strength | Complex profiles, stepped geometry, repeatable precision |
Why Choose PG Punches?
- Stable geometry for long tool life
- Accurate fitting for multi-step dies
- Inspection and records ensure repeatable production




Who We Work With
We mainly serve:
- Mold & die manufacturers
- Stamping and punching factories
- Tooling suppliers requiring custom precision parts
Our customers choose us when accuracy and delivery reliability matter more than low price.
Typical Challenges We Help Solve
Do you often face these issues?
- Custom punches with multiple steps or complex profiles are difficult to control in accuracy
- Inserts require tight fitting, causing repeated assembly and adjustment
- Trial mold or modification parts are urgent, but suppliers miss deadlines
- Repeat orders show dimensional inconsistency
Our job is to make these problems predictable and controllable.
Custom Parts We Manufacture
We specialize in non-standard, drawing-based precision components, including:
- Custom punches (stepped, profiled, angled, special shapes)
- Precision inserts and core components
- PG-ground forming punches
- Wire EDM precision profile parts
- Small-size, high-hardness tooling components
- Trial, modification, and small-batch production parts
Each part is manufactured with clear control of critical dimensions and fitting requirements.
Why Mold Makers and Stamping Plants Choose Us
Precision You Can Rely On
- Critical dimensions confirmed before machining
- Inspection performed after processing
- Internal records maintained for repeat orders
Stable and Predictable Lead Time
- Familiar with tooling and stamping production schedules
- Flexible arrangement for trial and modification parts
- Clear communication on delivery expectations
Tooling-Focused Manufacturing Mindset
- We don’t just machine to drawing—we consider fitting, assembly, and service life
- Support for minor design or process optimization when needed
Quality Control
- PG optical inspection for profile accuracy
- Dimensional checks on key tolerances
- Controlled process for repeat production
Inspection data can be provided upon request.
Cooperation Process
- Send drawings or samples
- Confirm machining method, tolerance, and lead time
- Quotation approval
- Manufacturing → Inspection → Delivery
Small-quantity trial orders are welcome before long-term cooperation.
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.






