• trusted-customer-logo-1
  • trusted-customer-logo-2
  • trusted-customer-logo-3
  • trusted-customer-logo-4
  • trusted-customer-logo-5
  • trusted-customer-logo-6
No minimum order
Tight Tolerances ±0.01mm
In-house QAQC
AS9100D Certified Partners
Engineer assisted quotes

470+

Customers
Served

500,000+

Parts
Manufactured

20+

Countries
Shipped

520+

Manufacturing
Partners

About Electrical Discharge Machining (EDM)

Electrical Discharge Machining (EDM) is a non-contact thermal process that removes material from electrically conductive workpieces using precisely controlled electrical discharges (sparks) between an electrode and the workpiece, submerged in a dielectric fluid. This method excels at machining ultra-hard metals like tool steels (D2, H13), carbides, Inconel®, and titanium alloys – materials that challenge conventional cutting tools. Two primary techniques are employed: Wire EDM uses a thin, continuously fed brass wire to cut 2D/3D contours with exceptional accuracy (±0.004mm), while Sinker EDM (Ram EDM) employs custom-shaped electrodes to create complex cavities, micro-features, or textured surfaces in hardened dies and molds. Unlike mechanical machining, EDM produces no cutting forces, eliminating part distortion and enabling burr-free finishes on delicate geometries like thin walls, sharp corners, or deep slots. The process is indispensable for manufacturing precision injection molds, aerospace turbine components, medical implants, and fine blanking tools where traditional methods reach physical limits.

EDM Services

cnc-wire-edm-services

Wire EDM Services

              Quick Quote

Our precision Wire EDM services deliver exceptional accuracy for complex 2D and 3D geometries, achieving tolerances as tight as 0.0025 mm in materials ranging from hardened tool steels and carbides to aerospace alloys. We ensure burr-free, stress-free cuts with fine surface finishes—ideal for components like medical implants, precision tooling, and aerospace actuators.
ISO 9001/AS9100 Certified – Full quality compliance and material traceability
Fast Turnarounds – Prototypes in days, production scaling to 50k+ parts


cnc-sinker-edm-services

Sinker/Ram EDM Services

          Quick Quote

Our Sinker/Ram EDM services specialize in producing complex cavities, textures, and precise micro-features with exceptional dimensional stability and superior surface finishes as fine as Ra 4 µin. Using custom-shaped graphite or copper electrodes, tolerances of ±0.00015" (3.8 µm) is achieved in hardened metals like tool steels, Inconel®, and carbides—making this process ideal for injection molds, aerospace components, and high-wear automotive tooling.
ISO 9001/AS9100 Certified – Guaranteed quality and full compliance
Rapid Prototyping & Production – Scalable solutions from 1 to 10,000+ parts


EDM Hole Drilling Services

EDM Hole Drilling Services

         

Quick Quote

Our EDM Hole Drilling services specialize in producing high-aspect-ratio micro-holes as small as 0.04 mm (40 µm) with depth-to-diameter ratios up to 30:1, even in the toughest materials like carbides, Inconel®, and hardened steels. This process eliminates tool deflection, work hardening, and residual stress—making it ideal for aerospace fuel nozzles, medical device lubrication channels, and precision mold cooling systems. We deliver burr-free, precision holes with exceptional repeatability for both prototyping and production volumes.
Micro-Holes to 0.04 mm – Precision drilling for highly detailed components
Aspect Ratios Up to 30:1 – Deep, narrow holes in superalloys and carbides


Fine Wire EDM Services

Fine Wire EDM Services

            Quick Quote

Our Fine Wire EDM services deliver precision for manufacturing complex miniature components using ultra-fine wires as thin as 0.02 mm (20 µm). This advanced process achieves exceptional tolerances within ±0.00004" (1 µm) and produces smooth surface finishes down to Ra 0.1 µm, making it ideal for medical devices, aerospace sensors, and precision tooling. With the capability to machine fragile and hard-to-cut materials without inducing mechanical stress or distortion, Fine Wire EDM ensures accuracy and repeatability for highly specialized applications.
Full ISO Certification & Traceability – Quality assured for regulated industries


EDM Tolerances for Precision Applications

To ensure first-pass success and cost efficiency, adhere to these industry-leading tolerance standards for EDM processes. Exceeding these thresholds may require design adjustments or secondary operations – consult our engineers for critical applications.


EDM Process Standard Tolerance Tight Tolerance Critical Notes Ideal Materials
Wire EDM ±0.010mm ±0.004mm Corner radii ≥0.1mm; Max thickness: 300mm Hardened steels, Ti, carbide
Sinker/Ram EDM ±0.010mm ±0.004mm Surface finish: 4–8 Ra µin; Min feature: 40µm Tool steels, Inconel®, copper
EDM Hole Drilling ±0.010mm ±0.005mm Min Ø: 40µm; Max depth ratio: 30:1 Carbide, Hastelloy®
Fine Wire EDM ±0.010mm ±0.005mm Min feature: 20µm; Max thickness: 20mm Nitinol, beryllium copper


EDM Materials


Aluminum

Lightweight, corrosion-resistant, exhibits high strength-to-weight ratio and excellent thermal and electrical conductivity.   Learn more

Available Materials
Finishing Options

Copper

Highly conductive, malleable metal with excellent thermal and electrical conductivity and resistance to corrosion.   Learn more

Available Materials
Finishing Options

Brass

Corrosion-resistant alloy of copper and zinc, known for its machinability, strength, and acoustic properties.   Learn more

Available Materials
Finishing Options

Bronze

Durable, corrosion-resistant alloy primarily composed of copper and tin, known for its strength and wear resistance.   Learn more

Available Materials
Finishing Options

Tool Steel

High hardness, resistance to abrasion, and ability to maintain a sharp edge, ideal for cutting and shaping tools.   Learn more

Available Materials
Finishing Options

Stainless Steel

Corrosion-resistant alloy with excellent strength and durability, primarily composed of iron, chromium, and nickel.   Learn more

Available Materials
Finishing Options

Alloy Steel

Enhanced strength, toughness, resistance to wear and corrosion through the addition of elements like chromium, nickel, and molybdenum.   Learn more

Available Materials
Finishing Options

Mild Steel

Mild steel, also known as low-carbon steel. Mild steel is primarily characterized by having a carbon content of less than 0.2% by weight.   Learn more

Available Materials
Finishing Options

Titanium

Lightweight, strong, corrosion-resistant metal known for its high strength-to-weight ratio and biocompatibility.   Learn more

Available Materials

Finishing Options
  • As Machined
  • Smooth Finishing
  • Fine Finishing
  • Brushed
  • Bead Blasting
  • Polishing
  • Powder Coating
  • Black Oxide


  • As Machined Standard Finish

    As Machined Standard

    Surface finish directly as a result of machining, without any post processing.   Learn more

    Finish Specifications
    • Surface roughness (Ra): 3.2μm / 126μin
    • Machining marks: Parts may have visible tool marks
    • Deburring: Parts are deburred and sharp edges are chamfered
    • Cosmetic: Some parts can have minor visual variations and cosmetic surface flaws
    As Machined Medium Finish

    As Machined Medium

    Surface finish is smoother than our standard finish, but no post processing is done.   Learn more

    Finish Specifications
    • Surface roughness (Ra): 1.6μm / 63μin
    • Machining marks: Parts may have lightly visible tool marks
    • Deburring: Parts are deburred and sharp edges are chamfered
    • Cosmetic: Some parts can have minor visual variations and cosmetic surface flaws
    As Machined Fine Finish

    As Machined Fine

    This is accomplished by using fine machining with high quality cutting tools.   Learn more

    Finish Specifications
    • Surface roughness (Ra): 0.8μm / 32μin
    • Machining marks: Parts may have lightly visible tool marks
    • Deburring: Parts are deburred and sharp edges are chamfered
    • Cosmetic: Some parts can have minor visual variations and cosmetic surface flaws
    Bead Blasting

    Bead Blasting

    Parts are glass bead blasted which will result in a textured satin-like finish.   Learn more

    Finish Specifications
    • Machining marks: Machining marks are almost entirely removed
    • Deburring: Parts are deburred and sharp edges are chamfered
    • Cosmetic: Some parts can have minor visual variations and cosmetic surface flaws
    • Tolerances: Being a reductive finish, not suitable for parts with extremely tight tolerances
    Brushed Finish

    Brushed

    Parts are manually brushed with sand paper to improve surface roughness.   Learn more

    Finish Specifications
    • Surface roughness (Ra): 1.2μm / 47μin
    • Machining marks: Almost entirely removed except areas physically not accessible
    • Deburring: Parts are deburred and sharp edges are chamfered
    • Cosmetic: Some parts can have minor visual variations and cosmetic surface flaws
    • Tolerances: Being a reductive finish, not suitable for parts with extremely tight tolerances
    Chromate Conversion Coating

    Chromate Conversion Coating

    Chromate Conversion Coating will be applied to parts with As Machined finish.   Learn more

    Finish Specifications
    • Machining marks: Visible per the As Machined finish prior to Chromate Conversion
    • Deburring: Parts are deburred and sharp edges are chamfered
    • Cosmetic: Some parts can have minor visual variations and cosmetic surface flaws
    • Tolerances: No effect on tolerances
    Polishing

    Polishing

    Parts are manually polished resulting in a smooth surface roughness.   Learn more

    Finish Specifications
    • Surface roughness (Ra): 0.8μm / 32μin
    • Machining marks: Almost entirely removed except areas physically not accessible
    • Deburring: Parts are deburred and sharp edges are chamfered
    Powder Coating

    Powder Coating

    Economical, durable and long-lasting finish with many color options.   Learn more

    Finish Specifications
    • Surface roughness (Ra): N/A
    • Machining marks: Will not be visible
    • Deburring: Parts are deburred and sharp edges are chamfered
    • Cosmetic: Minor visual variations and cosmetic surface flaws may exist
    • Tolerances: Coating thickness to be taken into account; threads will be masked
    Black Oxide

    Black Oxide

    Black Oxide coating is applied on As Machined parts to improve wear resistance.   Learn more

    Finish Specifications
    • Surface roughness (Ra): Per As Machined
    • Machining marks: Will be visible
    • Deburring: Parts are deburred and sharp edges are chamfered
    • Cosmetic: Minor visual variations and cosmetic surface flaws may exist
    • Tolerances: Coating thickness considered; thread masking as needed
    Electroless Plating

    Electroless Plating

    Electroless plating is applied to As Machined finish parts.   Learn more

    Finish Specifications
    • Surface roughness (Ra): Per As Machined
    • Machining marks: Will be visible
    • Deburring: Parts are deburred and sharp edges are chamfered
    • Cosmetic: Minor visual variations and cosmetic surface flaws may exist
    • Tolerances: Coating thickness considered; thread masking as needed
    Anodizing Type 2

    Anodizing Type 2

    Anodizing Type 2 is applied on As Machined parts to improve wear resistance.   Learn more

    Finish Specifications
    • Surface roughness (Ra): Per As Machined
    • Machining marks: Will be visible
    • Deburring: Parts are deburred and sharp edges are chamfered
    • Cosmetic: Minor visual variations and cosmetic surface flaws may exist
    • Tolerances: Coating thickness considered; thread masking as needed
    Anodizing Type 3

    Anodizing Type 3 (Hard)

    Anodizing Type 3 is applied on As Machined parts to form a highly durable coating.   Learn more

    Finish Specifications
    • Surface roughness (Ra): Per As Machined
    • Machining marks: Will be visible
    • Deburring: Parts are deburred and sharp edges are chamfered
    • Cosmetic: Minor visual variations and cosmetic surface flaws may exist
    • Tolerances: Coating thickness considered; thread masking as needed


    EDM Design Guidelines

    These EDM Design Guidelines ensure your parts are manufactured efficiently and cost-effectively by highlighting critical design constraints and optimization strategies for each process. Adhering to these specifications prevents common manufacturing failures – such as wire breakage in Wire EDM, electrode wear in Sinker EDM, or hole deflection in Micro-Drilling – while maintaining micron-level tolerances (±0.004mm) and superior surface finishes. The guidelines directly address material limitations, geometric thresholds, and tolerance best practices to eliminate costly redesigns, reduce machining time by up to 30%, and guarantee first-pass success for complex geometries in hardened metals, carbides, and superalloys.


    Capability Key Design Guidelines Why It Matters
    Wire EDM • Min corner radius: 0.1mm
    • Max thickness: 300mm
    • Min slot width: 0.25× material thickness
    • Avoid aspect ratios >20:1
    Prevents wire breakage, reduces machining time by 30%, maintains ±0.004mm accuracy
    Sinker/Ram EDM • Electrode clearance: 0.03–0.1mm/side
    • Draft angles: ≥1°
    • Max cavity depth: 150mm
    • Uniform wall thickness
    Lowers electrode costs 40%, achieves Ra 0.8 µin finishes, prevents undercuts
    EDM Hole Drilling • Min hole Ø: 40µm
    • Max depth ratio: 30:1
    • Entry surface flatness: ±0.1°
    • Space holes ≥3× diameter
    Eliminates secondary operations, maintains ±10µm positional accuracy in superalloys
    Fine Wire EDM • Min feature size: 20µm
    • Max material thickness: 20mm
    • Avoid unsupported spans >5mm
    • Specify critical zones for Ra<0.1µm
    Enables burr-free medical components, reduces fragile-part rejection by 90%

    Quality & Certifications Module

    Certified Precision, Validated In-House: Your Guarantee of Zero-Defect Parts

    Every component is sourced from our vetted ISO/AS9100-certified manufacturing partners, then 100% physically inspected at our facility before shipment. Unlike others, we enforce a 3-stage custody protocol:


    Material Compliance: We order and validate material certifications (RoHS, REACH, FDA, mill test reports) on your behalf.
    In-House Verification: Dimensional accuracy checks via CMM, VMM, 2D height gauges (±0.01 mm), and precision tools.
    Critical feature validation against your drawings (hole positions, thread fits, flatness).
    Visual inspection for surface defects, burrs, and cosmetic flaws.


    Final Certification: Full documentation including material certs, CoCs, and inspection logs.
    We guarantee: ±0.015 mm tolerances on all shipped parts (validated in-house).
    Zero paperwork gaps – we manage all supplier certifications.
    100% physical custody – no direct supplier shipments delivering zero-defect compliance from prototype to 100,000+ part production runs.

    Why Partner With Us for Precision EDM Services?

    We deliver wire EDM, sinker/ram EDM, hole drilling, and fine wire EDM capabilities that transcend industry standards, combining micron-level accuracy (±0.004mm) with unmatched material expertise for hardened steels, carbides, and aerospace alloys. Our dedicated team of EDM engineers and ISO 9001/AS9100-certified manufacturing partners ensure consistent quality for complex geometries—from micro-hole drilling (40µm diameter) to fine wire EDM cutting at 50µm precision—all backed by rigorous in-process CMM verification and full material traceability. Every project is managed through our intuitive digital dashboard, giving you real-time order tracking, instant revision approvals, and downloadable inspection reports without navigating opaque platforms.


    We guarantee zero burrs, zero distortion, and zero supply-chain surprises: if any part fails to meet specifications, we remake it immediately at our cost with expedited shipping. Experience seamless scaling from 1 prototype to 10,000+ production units—all adhering to medical (ISO 13485) and aerospace (AS9100) compliance—with lead times 30% faster than industry averages.



    The Platform Advantage - Unified Oversight for Precision Manufacturing

    Our integrated dashboard delivers end-to-end project command—streamlining workflows while ensuring transparency at every stage. Experience seamless coordination from initial request to final delivery, all within a single secure interface.


    Submit & Configure with Precision

    RFQ Initiation Upload CAD files (STEP, IGES, SLDPRT) and drawings
    Specify requirements: materials, tolerances, finishes, inspection protocols
    Request custom documentation: material certs, CMM reports, customs forms
    Real-Time Quoting Receive instant DFM analysis with cost drivers flagged
    Adjust configurations (e.g., material substitutions) to optimize pricing

    Order Execution & Oversight

    Document Management Submit customs declarations, commercial invoices, and HS codes
    Upload purchase orders or approve terms for payment
    Access digital invoices with tax/line-item breakdowns
    Production Intelligence Track progress and updates
    View Shop floor photos/videos
    Access Inspection reports, quality documents and Material certifications
    Monitor shipping status with carrier integrations

    Proactive Collaboration & Support

    Engineer Engagement Send technical queries and status enquiries to our engineers via encrypted chat
    Receive resolution timelines for technical queries
    Quality Assurance Hub Access pre-shipment documentation: First-article inspection reports, dimensional reports and quality documents
    Approve/reject deliverables via annotated media
    Post-Delivery Excellence Initiate reorders with one-click cloning
    Log support tickets for non-conformances
    Archive project history (drawings, certs, comms) for audits

    Industries specialized

    Aerospace parts for CNC EDM

    Aerospace

    Automotive parts for CNC EDM

    Automotive

    Consumer Product parts for CNC EDM

    Consumer Products

    Medical parts for CNC EDM

    Medical


    Frequently Asked Questions

    We specialize in Wire EDM (precision 2D/3D contouring), Sinker/Ram EDM (complex cavities/textures), EDM Hole Drilling (micro-holes down to 40µm), and Fine Wire EDM (20µm feature resolution). Our multi-process approach handles everything from aerospace turbine components to medical micro-implants, achieving tolerances to ±0.004mm .

    We machine 50+ conductive materials, including hardened tool steels (D2, H13), titanium, Inconel®, carbide, copper. Unlike competitors, we excel with alloys for medical (ISO 13485) and aerospace (AS9100) applications, with thicknesses up to 600mm for Wire EDM .

    We guarantee 30% tighter tolerances than industry averages:

  • Wire EDM: ±0.004mm
  • Hole Drilling: ±0.010mm positional accuracy
  • Fine Wire EDM: ±0.005mm for medical micro-components
  • Yes. Our engineers offer free DFM analysis within 4 hours, optimizing designs to avoid costly errors. Key guidelines include:

  • Min corner radius: 0.1mm for Wire EDM
  • Hole depth ratio: ≤30:1 for EDM drilling
  • Starter holes (Ø≥0.5mm) to reduce machining time 40% .
  • We specialize in:

  • Aerospace: Turbine blades, fuel nozzles (AS9100 certified)
  • Medical: Surgical tools, implants (ISO 13485 compliant)
  • Automotive: Injection molds, precision dies
  • Electronics: Micro-connectors, heat sinks .
  • Every part undergoes:
    1. In-process CMM checks during machining.
    2. Final inspection with optical comparators.
    3. Full traceability with material certifications.
    We exceed ISO 9001:2015 standards and provide inspection reports with shipments .

    Absolutely. Leveraging our network of 200+ ISO-certified partners, we scale from 1 prototype to 50,000+ production parts with consistent quality. Lead times are 30% faster than other providers for identical orders .

    Upload STEP, IGES, DXF, or SolidWorks® files for instant pricing. For 2D drawings, include GD&T callouts and surface finish requirements (e.g., Ra 0.8 µin). Our platform analyzes designs in <5 minutes with free DFM feedback .

    Yes. We provide anodizing, powder coating, micro-arc oxidation (MAO), and electropolishing. All finishes meet industry-specific requirements (e.g., corrosion resistance for marine components) .

    Get a Quick Quote in 2 Hours: by [uploading your CAD file](link).
    We promise: On-time delivery: 99.7% success rate (vs. 95% industry average).
    Zero-surprise pricing: All costs locked pre-production.
    Quality commitment: Remake parts at our cost if specs are missed.