CNC Boring Service
CNC boring services provide precise enlargement of pre-drilled holes, ensuring tight tolerances, smooth finishes, and accurate dimensions for complex parts across various industries.
DEK offers CNC boring services that make holes more accurate and smooth for all kinds of parts. What makes us different is our fast service, strict quality checks, and ability to handle custom jobs, making sure every part meets your exact needs.

introduction
CNC Boring Services | Expertise for Precision-Fit Components

DEK provides precise CNC boring services to improve hole accuracy and surface finish, helping your parts fit better and work smoothly in any application.
DEK offers high-quality CNC boring services using advanced equipment and skilled experts to meet the exact needs of your project. Our facility is equipped with modern CNC boring mills capable of handling both small precision parts and large, heavy-duty components. We specialize in improving the size, alignment, and surface finish of pre-existing holes, ensuring every part meets tight tolerances and fits perfectly into its intended assembly. Whether you need custom prototypes or large-scale production, DEK provides flexible, efficient, and accurate machining solutions tailored to a variety of industries, including automotive, aerospace, energy, and heavy machinery.
From consultation to final delivery, DEK ensures consistent quality, fast turnaround times, and competitive pricing for all your CNC boring needs.
- Advanced CNC boring mills
- Tight tolerance capability
- Custom prototype and volume production
- In-house quality inspections
- Délais d'exécution rapides
- Support for multiple industries










Matériaux for CNC Boring Services
Métaux
Plastiques
Acier allié
Alloy steels are widely used in CNC boring services due to their excellent strength, wear resistance, and durability. These materials are ideal for high-stress applications in industries such as construction, transportation, oil & gas, and heavy equipment.
DEK’s advanced boring systems are capable of machining even the toughest steel grades with precision, ensuring clean internal bores and tight tolerances for components like gears, shafts, tooling, and structural parts requiring long-term reliability.
Alliage
1215, 4130, 4140, 4340, etc.
Aluminium
Aluminum is a lightweight, corrosion-resistant metal widely used in CNC boring services for its excellent machinability and thermal conductivity. It is ideal for producing parts where weight reduction and heat dissipation are important, such as in aerospace, automotive, and industrial machinery.
At DEK, we provide high-precision boring for aluminum components, achieving accurate hole dimensions and smooth finishes. Typical applications include housings, brackets, and enclosures that require consistent quality and performance across both prototype and production runs.
Alliage
AL6061, AL6063, AL5083, AL5052, etc.
Laiton
Brass is a highly machinable, corrosion-resistant metal favored in CNC boring services for its strength, appearance, and electrical conductivity. It is commonly used in plumbing, electronics, and decorative hardware applications due to its durability and clean finishing ability.
DEK’s CNC boring process ensures accurate hole sizes, tight tolerances, and smooth internal surfaces. Brass components such as connectors, fittings, and bushings are machined with high repeatability, making them ideal for both functional and aesthetic applications.
Alliage
Laiton 260, C360, Cz121, etc.
Fonte
Cast iron is a strong, durable material well-suited for CNC boring services, especially in high-load or high-vibration environments. Known for its excellent compressive strength and natural vibration-damping properties, it’s ideal for heavy machinery, engine components, and industrial bases.
DEK’s advanced boring equipment ensures accurate hole dimensions and consistent surface quality, even in large or complex castings. This makes cast iron a dependable choice for parts that require long-term performance and structural stability.
Alliage
Grey Iron, Ductile Iron, Meehanite
Cuivre
Copper is highly conductive and commonly used in CNC boring services for components that demand superior electrical and thermal transfer. Its softness and thermal sensitivity require careful machining.
At DEK, we handle with precision and expertise. We deliver clean, accurate bores and tight tolerances ideal for parts like electrical contacts, bus bars, and heat sinks. Copper’s versatility makes it perfect for power systems, electronics, and communication devices where performance and efficiency are critical.
Alliage
Cuivre C101, C110, etc.
Acier inoxydable
Stainless steel is a corrosion-resistant, high-strength metal widely used in CNC boring services for demanding environments. It is ideal for components in medical, aerospace, marine, and food-grade applications due to its hygienic properties and structural integrity.
At DEK, we ensure accurate boring with tight tolerances and clean finishes, even in tough-to-machine grades. Common stainless steel parts include pump housings, flanges, and valves that require precision, durability, and resistance to rust or chemical exposure.
Alliage
Acier inoxydable 301, 303, 304, 304L, 316, 316L, etc.
Titane
Titanium is a lightweight, high-strength metal known for its corrosion resistance and biocompatibility, making it ideal for high-performance CNC boring applications. It is often used in aerospace, medical, and marine industries where strength, reliability, and minimal weight are essential.
DEK specializes in boring titanium components with extreme accuracy, using advanced machines that minimize tool wear and maintain tight tolerances. Common parts include surgical implants, aircraft components, and underwater fittings that demand both precision and durability.
Alliage
Titane Grade 1, Grade 2, Grade 5, etc.
ABS
ABS (Acrylonitrile Butadiene Styrene) is widely used in CNC boring services due to its excellent impact resistance, dimensional stability, and ease of machining. This versatile thermoplastic is ideal for producing lightweight yet durable components in industries such as automotive, consumer products, electronics, and prototyping, where precision and repeatability are essential.
DEK’s advanced boring systems deliver smooth, accurate bores and tight tolerances in ABS, ensuring high-quality results for housings, enclosures, fittings, and custom parts requiring consistent performance.
Delrin
Delrin is a strong, wear-resistant plastic that offers low friction, excellent machinability, and consistent dimensional stability. In CNC boring services, it is a preferred material for manufacturing parts requiring smooth motion, tight fits, and low moisture absorption. Commonly used in automotive, consumer electronics, and industrial systems, Delrin is ideal for gears, bearings, pulleys, and bushings.
At DEK, our high-precision boring ensures clean, burr-free internal bores and accurate dimensions. Its reliable performance, even in moist or low-lubrication environments, makes Delrin a go-to choice for both functional and load-bearing components in high-precision applications.
Nylon
Nylon is a tough, versatile plastic often used in CNC boring services for parts that require strength, flexibility, and resistance to abrasion and chemicals. It is widely used in automotive, electrical, and mechanical applications, including rollers, spacers, washers, and bushings. Nylon offers a good balance of durability and machinability, though it requires careful handling during boring to prevent deformation.
DEK’s advanced CNC equipment and skilled operators ensure accurate hole boring and consistent surface quality. Its lightweight properties and cost-effectiveness make nylon suitable for both prototype and volume production across a wide range of industries.
PEEK
PEEK is a high-performance engineering plastic recognized for its exceptional thermal stability, chemical resistance, and mechanical strength. It is widely used in CNC boring services for applications that demand reliability under extreme conditions, such as aerospace, medical implants, and electronic components. PEEK maintains its performance in high temperatures, aggressive chemicals, and mechanical stress.
Our precision CNC boring service at DEK ensures tight tolerances, minimal distortion, and smooth internal finishes. This makes PEEK an excellent choice for high-performance parts like seals, bearings, insulators, and structural components where durability and long-term functionality are critical.
PEI
PEI (Polyetherimide) is widely used in CNC boring services for its exceptional strength, heat resistance, and dimensional stability. This high-performance thermoplastic is ideal for demanding applications in aerospace, medical, electronics, and automotive industries where components must withstand high temperatures, mechanical stress, and repeated sterilization without deformation.
DEK achieves precise internal bores and tight tolerances in PEI, delivering consistent quality for parts such as insulators, manifolds, structural components, and specialized fittings.
PET
PET (Polyethylene Terephthalate) is a popular choice for CNC boring thanks to its excellent wear resistance, low moisture absorption, and superb dimensional stability. This versatile thermoplastic is well-suited for food processing, packaging, electronics, and precision mechanical parts, where long-lasting performance and accuracy are key.
Our advanced boring technology delivers clean, precise bores and consistently tight tolerances in PET, making it ideal for components like gears, rollers, bearings, and other custom parts that demand reliability.
PPSU
PPSU (Polyphenylsulfone) is widely used in CNC boring for its outstanding toughness, high heat resistance, and exceptional longevity. This premium thermoplastic performs reliably in medical, aerospace, and industrial environments, resisting repeated sterilization, continuous hot water exposure, and heavy mechanical loads without degradation.
DEK’s precision boring capabilities ensure smooth, accurate internal bores and consistent tolerances in PPSU, delivering dependable results for medical instruments, fluid handling components, and high-strength industrial parts.
Instantané & Citations précises

Nous n'utilisons pas d'outils de devis automatisés en ligne, car ils sont très imprécis. Les plateformes de devis en ligne reposent uniquement sur des calculs basés sur des montants de coupe et des coefficients fixes, et ne tiennent pas compte des nuances de traitement réelles, comme la déformation du matériau après le traitement thermique, les exigences de tolérance strictes, le meulage après le traitement thermique, etc. Par conséquent, les calculs de prix automatisés peuvent entraîner des inexactitudes et, en fin de compte, augmenter vos coûts.
Mais chez DEK, vous pouvez être tranquille !
Nos devis sont à la fois rentables et précis, car nous disposons d'une équipe d'ingénieurs mécaniciens professionnels qui examinent méticuleusement chaque dessin. Ces ingénieurs ont plus de 10 ans d'expérience et possèdent une grande expertise en matière de programmation, de fonctionnement des machines, de post-traitement, de propriétés des matériaux, etc. Nous vous garantissons des devis précis dans un délai de 6 heures.
Nos avantages
2300+ ingénieurs Aimer travailler avec nous
No Order Limits
DEK supports both small and large CNC boring orders with no minimum quantity required. Whether you need a one-off prototype or full-scale production, we provide the same level of quality and precision.
Material Flexibility
Our CNC boring machines are compatible with materials, including aluminum, stainless steel, titanium, and engineering plastics like PEEK and Delrin. DEK ensures smooth, accurate boring without compromising material integrity.
Cost-Effective Solutions
By optimizing machine setups and streamlining processes, DEK offers CNC boring services at prices lower than the industry standard. Our in-house expertise reduces waste and machining time, passing savings directly to you.
Tight Tolerance Boring
DEK’s CNC boring delivers ultra-precise tolerances up to ±0.005mm, making it ideal for parts that require flawless hole alignment and diameter control. This precision is essential in industries like automotive and aerospace, where even slight deviations can cause part failure.
Handles Complex Features
DEK specializes in boring parts with complex internal geometries using advanced multi-axis equipment. We handle deep-hole boring, angled bores, and multi-surface alignments that standard machining can't achieve.
Custom Surface Options
To enhance both function and appearance, DEK offers post-machining finishes such as anodizing, plating, powder coating, polishing, and sandblasting. These treatments improve wear resistance, corrosion protection, and part aesthetics.



Notre Processus de commande
Envoyer l'appel d'offres
Envoyer l'appel d'offres avec les dessins 2D/3D et les exigences détaillées par courrier électronique ou par formulaire en ligne.
Revue et citation
Notre équipe d'ingénieurs examinera soigneusement chaque dessin et fournira un devis précis dans les 6 heures.
Confirmer la commande
Confirmez le devis, les détails et le calendrier de livraison, puis signez le contrat.
Production
Organiser le processus de production, lancer la programmation et l'usinage.
Contrôle de la qualité
Contrôle strict de la qualité pendant la production et l'inspection finale.
Emballage et expédition
Emballez les pièces, apposez les étiquettes d'identification des pièces et commencez l'expédition.
Envoyer l'appel d'offres 222
Revue et citation
Confirmer la commande
Production
QC
Livraison
FAQ
CNC Boring FAQ sur l'achat
Obtenir un devis précis Pour vos prochains projets
Que votre projet soit simple ou compliqué, qu'il s'agisse de métal ou de plastique, vous obtiendrez un devis précis dans les 6 heures.
Obtenir un devis aujourd'huiSavoir CNC Boring
Qu'est-ce que le perçage CNC ?
CNC boring involves the use of computer-controlled machines to enlarge and precisely finish pre-existing holes in a workpiece. Unlike drilling, which creates a new hole, boring enhances the accuracy, diameter, and surface finish of an existing one. This process is especially critical when components must meet tight tolerances, smooth internal surfaces, or exact dimensional requirements. CNC boring ensures that every hole aligns perfectly with design specifications, which is essential for the proper fit and function of mechanical assemblies.
Using advanced CNC boring machines, manufacturers can efficiently handle both simple and highly complex parts with outstanding precision and repeatability. Whether working on small precision components or large, heavy-duty parts, CNC boring allows for custom adjustments that maintain consistency across every piece. These services are carried out by experienced technicians who operate state-of-the-art CNC equipment and utilize high-accuracy inspection tools to verify each measurement. This combination of skilled labor and advanced technology ensures that every part meets rigorous quality standards for accuracy, performance, and durability.
What are the Advantages of CNC Boring?
CNC boring offers unmatched precision and consistency for enlarging and finishing holes in metal or composite components. By utilizing advanced computer-controlled machinery, this process ensures that each bore is completed with exceptional accuracy, maintaining exact tolerances even on complex geometries or challenging materials. Whether it's a single prototype or a high-volume production run, CNC boring delivers uniform results, significantly reducing human error and manual rework
- Consistent repeatability
- Tight tolerance control
- Smooth surface finishes
- Ideal for large or heavy parts
- Reduced manual labor
- Faster production cycles
- Compatible with various materials
- Suitable for complex geometries
When Do You Need CNC Boring?
You need CNC boring services when your project requires precise enlargement, alignment, or finishing of existing holes to meet strict dimensional and surface finish standards. This process is commonly used when drilled or cast holes need to be refined for applications that demand high accuracy, such as engine blocks, gear housings, hydraulic components, and machine frames. If a hole is not perfectly round, smooth, or within specified tolerances, CNC boring ensures it is corrected to the exact diameter and depth, providing a better fit and function for mating parts like shafts, bearings, or fasteners.
CNC boring is also essential for projects involving large, heavy, or complex components where manual machining wouldn’t be practical or consistent. It plays a key role in industries like automotive, aerospace, energy, and industrial equipment, where reliability and performance are critical. Whether you're working on prototypes or full-scale production, CNC boring provides repeatable accuracy, reduces error, and supports tighter quality control. If your part must meet demanding specifications or operate under high stress, CNC boring is the solution that ensures long-term performance and safety.