100% Customization per Drawing

Punches

Stamping die punches for progressive, compound and transfer dies — shoulder, straight, tapped, tapered-head and ball-lock types in SKD11 (D2), SKH51 (M2) and SKH40 PM tool steel, HRC 58–70, MISUMI / DAYTON interchangeable, PVD coated, ±0.002 mm ground, MOQ 1, 3–7 day delivery.

SKD11 / SKH51 / SKH40 tool steels — HRC 58–70, vacuum heat treated with optional deep cryogenic
Shoulder, straight, tapped, tapered-head & ball-lock mounting — H7/m6 press-fit, bolt-through or quarter-turn
MISUMI & DAYTON interchangeable catalog dimensions — 516 standard SKUs
PVD coatings TiN / CrN / TiCN (2–5 µm) to extend edge life between regrinds
Anti-rotation key groove (±0.5°) or dowel hole (±0.1°) for shaped profiles
MOQ 1 piece — standard 3–7 days, urgent 24–72 h

Download CAD / Specs

Fast Response within 2 HoursSupport STEP, IGES, DWG, PDF Files

Technical Specifications

Punches Technical Parameters & Material Specs

Standard Materials

SKD11 / SKH51 / SKH40

AISI D2 / M2 / PM high-speed steel equivalents

Hardness Range

HRC 58 – HRC 70

Vacuum heat treated + optional deep cryogenic (-196 °C)

Mounting Types

Shoulder / Straight / Tapped / Tapered / Ball-Lock

H7/m6 press-fit, bolt-through or quarter-turn retention

Surface Coatings

TiN / CrN / TiCN PVD

2–5 µm films applied at 450–520 °C, no core softening

Parameter	Technical Details / Standard Values
Head (Shoulder) Diameter	Flanged head Ø 3–5 mm larger than shank for positive seating against hardened backing plate
Cutting Edge & Tip Geometry	Round, D-shape, square, oblong and custom profiles; ejector-pin bore for slug pulling control
Shank Fit & Retention	Straight shanks H7/m6 press-fit; tapped shanks internal thread bolt-through; ball-lock teardrop groove with quarter-turn
Anti-Rotation Locking	Key groove (±0.5°) for standard accuracy or cross-drilled dowel hole (±0.1°) for precision orientation
Recommended Die Clearance	5–8% of stock thickness per side for mild steel, 7–10% for stainless — verified per material grade
Regrind & Tool Life	Edge regrind of 0.05–0.1 mm; SKD11 ~50K hits per regrind vs SKH40 + TiCN up to 500K hits per regrind
Standards & Interchange	MISUMI & DAYTON catalog dimensions, 516 standard SKUs, same-day shipping on standard catalog sizes
Overall Length (L)	Catalog standard lengths plus custom lengths machined to your CAD — MOQ 1 piece

Need a non-standard size or special alloy core pin? We specialize in 100% custom machining according to your 2D/3D CAD drawings.

APPLICATION & INDUSTRY SOLUTIONS

High-Performance Punches for Demanding Stamping Applications

🚗 Automotive

Progressive & AHSS Stamping Dies

High-speed progressive dies running 500+ SPM on DP590–DP980 AHSS and stainless — SKH51 heavy-load punches hold HRC 63–65 under sustained edge heat, PPAP-ready.

🔌 Electronics

Small-Hole Piercing & Connector Leads

Ejector punches with spring-loaded pins prevent slug pulling in holes below Ø 5 mm at high stroke rates; tight-pitch layouts use straight press-fit shanks.

🏭 Fabrication

General Piercing & Blanking

SKD11 shoulder punches for mild steel, aluminum and copper up to 3 mm — the best cost-to-life ratio for everyday blank separation.

⚙️ Heavy Industry

Thick Plate & Abrasive Materials

SKH40 PM punches (HRC 67–70) for spring steel, 304/316 stainless and electrical steel laminations; reinforced-shank heavy-load series for plate over 3 mm.

Key Mold Performance Challenges We Resolve:

Punch Breakage & Chipping

Upgrade to SKH51/SKH40 for material-related chipping or reinforced-shank heavy-load punches for L/D buckling — verified per application.

Slug Pulling at High Speed

Ejector punches with spring-loaded pins or vacuum-relief holes stop thin slugs sticking at >300 SPM and in holes under Ø 5 mm.

Rotation & Burr Control

Dowel-hole locking (±0.1°) holds shaped profiles true; correct 5–10% clearance plus TiCN coating keeps burr height within spec between regrinds.

CUSTOM MACHINING CAPABILITIES

Tailored Punch Machining & Special Processing Limits

📏 Dimensional Limits

Micro & Complex Dimensions

Outer Diameter (OD): Min Ø 0.2 mm to Max Ø 50.0 mm
Pin Length: Up to 600 mm (ultra-long punches supported)
Special Shapes: Stepped, tapered, flat D-cut, square head & eccentric pin tip

⚙️ Special Processes

Cooling & Deep Hole EDM

Cooling Channels: Internal water cooling holes & spiral baffle channels
Air Venting: Porous / vented punches structures for gas release
Micro-EDM: Complex cavity contours, thread inserts and micro-grooves

🛡️ Surface Treatments

Advanced PVD Coatings

TiN / TiAlN: High-heat resistance for die casting molds
DLC (Diamond-Like Carbon): Ultra-low friction for dry / cleanroom molding
Nitriding Treatment: HV 900–1100 surface hardness for extended mold life

Support 100% Customization According to Your Drawings

Send us your CAD files for a free DFM (Design for Manufacturability) analysis and instant quotation.

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QUALITY ASSURANCE & INSPECTION

Rigorous Precision Inspection & Quality Control Standards

🔬 Inspection Hardware

High-Precision Testing Equipment

ZEISS CMM for complex 3D contours
Nikon optical projector & tool presetters (0.001 mm resolution)
Vickers hardness testers & surface roughness gauge

🎯 Quality Standards

Zero-Defect Quality Assurance

100% critical dimension inspection before packaging & shipment
Concentricity & runout verification under optical magnifiers
Surface micro-scratch & polish quality double-check

📜 Material Compliance

Full Material & Heat Treatment Traceability

Spectrometer material composition analysis report provided
Original Mill Test Certificate (MTC) & heat treatment logs
RoHS & REACH environmental compliance statements

Download Sample Quality Control & Inspection Reports

Review our standard CMM inspection sheet, Material Composition Certificate, and RoHS report templates.

MANUFACTURING PROCESS & LEAD TIME

Precision Machining Workflow & Reliable Delivery Timelines

Turning / Soft CNC

Precision rough turning & blank shaping

Heat Treatment

Vacuum quenching (HRC 48–62)

Rough Grinding

Centerless & OD precision grinding

Finish Grinding / EDM

Jig grinding & micro-EDM features

Surface Coating

PVD (TiN/DLC) or polishing (Ra 0.1)

100% CMM QC

Dimension check & safe packaging

📦 Standard Delivery

3–5 Working Days

For standard dimensions, off-the-shelf standard blanks, and standard SKD61/H13 materials.

🛠️ Custom Manufacturing

7–10 Working Days

For tailored CAD drawings, complex cooling channels, special coatings, or tight ±0.002 mm tolerances.

⚡ Fast-Track Option

24–72 Hours Express

Emergency mold repair green channel available for urgent downtime orders (upon CAD review).

MANUFACTURING CAPABILITY & DETAIL GALLERY

Precision Craftsmanship & Advanced Factory Hardware

Mirror Finish & Micro Polish

Ra 0.1 µm surface roughness, zero micro-burr or tool marks on pin tip.

Precision Chamfering & R-Angle

Smooth transition radii and precise lead-in chamfers per CAD specs.

PVD Coating & Nitriding Layers

Uniform TiAlN / DLC coating film thickness with high surface adhesion.

Complex Head & Tip Geometries

Precision stepped, D-cut flat, and eccentrically shaped pin profiles.

High-End Machining & Tooling Hardware:

⚡ Wire EDM

Seibu & Sodick Slow-Feed Wire Cut

Corner radius accuracy down to R0.02 mm
Surface roughness Ra 0.2 µm after wire cutting
Suitable for micro-slots, keyways, and complex pin contours

⚙️ Precision Grinding

Mitsui & WASINO Precision Grinders

Centerless & jig grinding for tight OD/length limits
Diameter tolerance controlled within ±0.001–±0.002 mm
Coaxiality & roundness ≤ 0.002 mm guaranteed

🛠️ CNC & EDM

Mikron High-Speed CNC & Sodick EDM

CNC high-speed turning & milling for blank preparation
Micro-cavity EDM for cooling channels and venting slots
Automated tool changers for high-volume consistency

ORDERING PROCESS & FREQUENTLY ASKED QUESTIONS

How to Order Custom Punches & Frequently Asked Questions

📁 Step 1

Submit CAD & Specs

Send 2D/3D drawings (STEP, DWG, PDF) with quantity, material, and tolerance requirements.

⏱️ Step 2

24H DFM & Quotation

Our engineering team conducts DFM analysis and provides a competitive quote within 24 hours.

⚙️ Step 3

Precision Manufacturing

CNC turning, vacuum heat treatment, jig grinding, and surface coating per your specifications.

✈️ Step 4

100% QC & Express Shipping

100% CMM dimensional verification, anti-rust packaging, and global air express delivery.

What is your Minimum Order Quantity (MOQ) for custom punches?

We support 1-piece prototyping! Whether you need a single replacement punches or bulk batch production of 10,000+ pieces, we accommodate all order volumes.

How do you guarantee material authenticity and heat treatment quality?

Every batch comes with original Mill Test Certificates (MTC) and spectral material analysis reports. Vacuum heat treatment logs (HRC hardness testing) are provided upon request.

What packaging and anti-rust protection do you apply for international shipping?

All finished punches undergo ultrasonic cleaning, immersion in heavy-duty anti-rust oil, individual vacuum plastic sealing, and padded shockproof box packaging.

Can you machine non-standard custom shapes or internal cooling channels?

Yes! We specialize in complex punches including stepped profiles, D-cuts, square heads, micro-EDM cavities, and internal/spiral water cooling channels per CAD specs.

Ready to Upgrade Your Mold Component Precision?

Send us your drawing today to receive a free DFM review and detailed quotation within 24 hours.

🔒 100% Confidential | NDA Protected | Instant DFM Assessment

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