CNC Machining Service

Best Parts CNC machining services offer you precision CNC machined parts fabrication of plastic and metal in any volume. We specialize in multi-axis CNC milling center, CNC turning center, EDM, surface grinding, laser engraving, and much more. In addition, you’re assured that all raw materials will meet your exact specifications because of our best-in-class testing and verification laboratory. That’s one of many reasons why we are a preferred supplier to world-class companies for their most demanding CNC machining projects online.

Online CNC Machining Service in China

Custom 1-100000 PCS Complex CNC Machined Parts

Factory Lower Price & Fast Delivery

Latest CNC Machined Parts

We produce high-quality CNC parts, which are used in aviation, automotive, marine engineering, medical, electronic equipment, and other fields.

Looking for professional OEM CNC turning services or want to receive a high-quality part from a reputable and reliable supplier? Best Parts provides excellent quality CNC lathe services in the United States and Europe based on the requirements to customers, featuring precision machined parts, lathe parts. Our precision CNC Turning Parts applications exist in a variety of industries including automobile, electronics, medical and more. We mainly serve customers from the United States, Europe, the Middle East, and more countries & regions.

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CNC Machining Process

CNC Turning

Best Parts’ CNC turning services employ imported, high-speed CNC turning centers with live tooling and automatic bar feeders. Live tooling using imported Gühring cutters lets us perform some milling and cross drilling functions without needing multiple machine set-ups, saving time and money. We routinely turn brass, aluminum, mild, and stainless steel as well as rigid plastic. Our CNC turning services create complex external geometries and internal bores with very tight tolerances and excellent surface finishes. CNC turning is suitable for rapid prototypes, new product introduction, and low-volume production.

CNC turning center
CNC turning center

CNC Milling

CNC milling services at Best Parts use imported, multi-axis CNC machine tools controlled with advanced PowerMILL and Vericut software. High-speed milling is ideal for creating prismatic shapes and complex geometries in a variety of brasses, mild and stainless steels, aluminum, titanium, and rigid plastic. Advanced Gühring endmills and cutters, as well as European management expertise, provides you the assurance that your parts will have tight tolerances with excellent surface finishes. And of course, we have a complete range of in-house finishing services for even more product development solutions.

CNC Milling center
CNC Milling center

Why You Can Trust Best Parts for Your Project?

Choose Best Parts to help you with your CNC Machining needs, we use state-of-the-art machinery and have over 20 years experience working in the precision engineering industry. We are capable of working on a full range of projects from small to large. Our CNC Machining Systems are rapid and efficient. For more information on our CNC Machining Services or any of our Precision Engineering Services such as CNC Turning or CNC Milling, please contact us.

20+ Years in Parts Manufacturing Online

Having carried out rapid prototyping and custom parts machining online for 20 years, our engineers have built up rich experience. We can handle all types of projects.

Factory Direct CNC Machining

Our in-house facilities allow us to quickly complete your project. Since we have multiple CNC turning, milling and die-casting equipment. Low price and fast lead-time.

50+ Materials Available

We Can CNC Machining 50+ materials such as metal, plastic, carbon fiber, etc. For example: Aluminum, Brass, Bronze, Copper, Steel, Stainless Steel, Titanium, ABS, Nylon, PEEK, PMMA, PTFE, Polystyrene, Polyethylene, Polycarbonate.

Precise, high tolerances

2D and 3D precision measuring instruments guarantee quality. ISO9001:2015 Certified.

Features Of CNC Machining Services in Best Parts Inc.

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CNC machining services at Best parts have many advantages for product development that can make it the ideal solution not only for rapid prototyping but also for volume production. Here is what you should consider.

  • Quick removal of large amounts of metal as well as engineering-grade plastic resins
  • Highly accurate and repeatable
  • Excellent for making complex geometries
  • Versatile
  • Suitable for many different kinds of substrates
  • Scalable volumes from one to 100,000
  • Low investment in tooling and preparation cost
  • Fast turnaround
  • Parts are full-strength and can be put into service immediately
  • Excellent surface finishes
  • Easily customized

What is CNC Machining?

CNC machining is a broad parts manufacturing category that includes many different computer-controlled processes where raw material is selectively removed in exact amounts to produce a near-final shape of parts. That’s why it’s considered subtractive, as opposed to additive manufacturing or 3D printing. Standard CNC machining processes include CNC milling, CNC turning, surface grinding, and electrical discharge machining (EDM) although there are other specialized applications. Whenever a machine is digitally controlled there must always be a 3D CAD file of the part design which is used to program the machine’s movements.


CNC Machining Service Online

How it works?

CNC machining manufacturing is used on many common metals such as aluminum, brass, mild and stainless steel, magnesium, and titanium. It can also be used on rigid or engineering-grade plastic resins. We employ it every day to make not only finished parts but also tools and dies that are used for  pressure die casting.

Because of the reliability and precision afforded by modern tools controlled with sophisticated software, CNC machining is an ideal rapid prototyping and production volume solution for making complex end-use parts with very tight tolerances.

How it CNC Machine Work?

– The working principle is that the computer in the numerical control device performs a series of processing on the information recorded in digital and character encoding, and then issues a command to the machine tool feed and other actuators, and the actuators perform various actions required for processing according to their commands, such as The movement path, displacement, and speed of the tool relative to the workpiece are automatically controlled to complete the processing of the workpiece.


– At BEST Parts, we use CNC machine parts from a wide range of plastics and metals. With over 50 high precision CNC mills, lathes, sink and wire EDMs, and surface grinding machines we provide high speed, precision machining for many industries.

CNC Machine work principle

Acceptable Materials for CNC Machining

We work with a wide range of plastic and metal alloy materials including magnesium, mild and stainless steel, aluminum, brass, and titanium as well as rigid engineering grade plastic resins. These materials are part of our standard inventory and can be sourced for immediate availability from reliable vendors who have been thoroughly vetted and approved by us. In addition, we can also provide specialty materials such as super hard alloys – just talk with our engineers to learn how we can meet your needs.

Most importantly, to ensure that your CNC machined parts meet all regulatory requirements we have an incoming materials inspection lab where we use sophisticated analytic testing instruments using Raman spectroscopy to confirm the exact chemical and physical properties of all raw materials. We leave nothing to chance for your peace of mind.






















The shapes that can be made by CNC Milling include various flat surfaces, tapers, contours, fillet and radius contours, and threaded surfaces. Although many turned parts use a single axis of rotation, there can also be multiple axes to provide greater flexibility (for example, camshafts).


Automotive industry:

engine, housing, screws, motor shafts, bearing sleeves, knobs, gaskets, shift levers, hydraulic valves, valve housings, sensor housings

Machinery industry:

fasteners, bushings, screws (rivets, bolts, nuts), shafts, engine components

Medical and biotechnology:

medical speculums, auxiliary surgical instruments, optoelectronic instrument components

Electronic products:

PCB auxiliary board, light-receiving end interface ferrule assembly, optical device metal assembly, product metal shell

Rapid Prototype to OEM Parts Manufacturing, Upload Drawings for Detailed Quotes.