Precision CNC machining.Built around your design.
Custom CNC milling and turning services for complex metal and plastic components—from rapid prototypes and engineering validation parts to low-volume and repeat production.
Complex geometry, controlled dimensions and consistent results.
JC Precision Craft manufactures custom CNC machined parts directly from customer CAD data and drawings. Our machining capabilities support aluminum, stainless steel, titanium, copper alloys, carbon steel and engineering plastics.
Every project begins with an engineering review covering material, geometry, tolerance, surface finish, inspection and production volume. This helps select an efficient process while protecting functional requirements.
The right machining process for each part.
Use CNC milling, CNC turning or multi-axis machining according to part geometry, access, tolerance and production efficiency.
CNC Milling
3-axis and 4-axis machining for plates, brackets, housings, manifolds and multi-feature prismatic parts.
Explore CNC Milling
CNC Turning
Precision turning and live-tool machining for shafts, bushings, sleeves, threads, fittings and cylindrical parts.
Explore CNC Turning
5-Axis CNC Machining
Simultaneous multi-axis machining for complex contours, deep features and multiple surfaces with fewer setups.
Explore 5-Axis MachiningMaterials matched to performance requirements.
Select materials according to strength, weight, corrosion resistance, conductivity, temperature, wear, appearance and cost.
Aluminum
Lightweight, machinable and corrosion-resistant for housings, brackets and thermal components.
6061 · 7075 · 5052 · 2024Stainless Steel
High strength and corrosion resistance for medical, food, marine and industrial parts.
304 · 316 · 17-4PH · 15-5PHTitanium
High strength-to-weight ratio and corrosion resistance for aerospace and medical applications.
Grade 2 · Grade 5 / Ti-6Al-4VBrass & Copper
Machinability, electrical conductivity and thermal performance for fittings and connectors.
Brass C360 · Copper C110 · BronzeCarbon & Tool Steel
Strength, durability and wear resistance for machinery, tooling and load-bearing components.
1018 · 1045 · 4140 · D2Engineering Plastics
Low weight, insulation, chemical resistance and low friction for functional precision parts.
PEEK · POM · PTFE · Nylon · ABS · PCFinish, protection and appearance in one workflow.
Surface treatments can improve corrosion resistance, wear performance, conductivity, texture, color and visual consistency. Critical dimensions can be identified for masking or post-finish inspection.
Precision parts for demanding products.
Our custom CNC machining services support engineering teams across high-performance industrial applications.
Inspection built into the machining process.
Quality planning begins with the drawing and continues through incoming material, in-process checks and final dimensional inspection.
Critical dimensions, datums, specifications and material requirements are reviewed.
CMM, optical systems, gauges, micrometers and calipers support verification.
Dimensional reports and material certificates can be supplied when requested.
From CAD file to inspected CNC parts.
A connected workflow helps control quality, communication, cost and delivery from prototype through production.
Submit Files
Send CAD, drawings, material and quantity.
DFM Review
Geometry, tolerance and process analysis.
Quotation
Confirm scope, lead time and pricing.
Machining
Programming, setup and controlled production.
Inspection
Dimensions, finish and documentation.
Delivery
Protected packing and global shipment.
Answers for your next CNC project.
Submit a drawing for a specific manufacturability, tolerance, lead-time and quotation review.
What CNC machining file formats do you accept?
JC Precision Craft commonly accepts STEP, STP, STL, DWG, DXF and PDF files. For tight-tolerance projects, provide both a 3D model and a dimensioned 2D drawing showing critical dimensions, threads, datums, finishes and inspection requirements.
What CNC machining tolerances can you achieve?
Standard tolerances can follow ISO 2768-m. Selected critical dimensions may be produced to tighter tolerances such as ±0.005 mm when part size, material, geometry and measurement access allow. Tight tolerances should be reviewed before quotation.
Which metals and plastics can you machine?
Materials include aluminum, stainless steel, carbon steel, tool steel, titanium, brass, copper, bronze and engineering plastics such as PEEK, POM, PTFE, nylon, ABS and polycarbonate. Additional grades can be sourced to specification.
Do you offer both CNC milling and CNC turning?
Yes. Capabilities include 3-axis, 4-axis and 5-axis CNC milling, conventional CNC turning, live-tool turning and multi-axis machining. The manufacturing route is selected according to geometry, tolerance, volume and setup efficiency.
Can you support prototypes and low-volume CNC production?
Yes. JC Precision Craft supports one-off parts, functional prototypes, engineering validation builds, pilot production, bridge manufacturing and repeat CNC machining orders.
What is the typical lead time for CNC machined parts?
Typical CNC machining lead time may be approximately 3–10 business days depending on geometry, material availability, quantity, surface finishing and inspection scope. A confirmed schedule is provided after reviewing the project files.
Can you provide finishing, assembly and inspection reports?
Yes. Surface finishing, marking, basic assembly, dimensional inspection reports and material certificates can be coordinated. Required documentation should be specified during quotation so it can be included in the production plan.
Ready to manufacture your CNC machined parts?
Send your CAD files, drawings, material, quantity, tolerance and surface finish requirements for engineering review.