JNC CNC Machining, LLC

Family-owned San Jose CNC shop with more than three decades of experience, specializing in small, intricate parts.

Capabilities

• CNC machining
• CNC turning
• Screw machining
• Aerospace parts
• Prototyping and custom parts

Materials

Aluminum, Stainless steel, Titanium, Brass, Copper, Engineering plastics.

Request a quote

To request a quote from this shop, use the Request a Quote form. Tell us the part, material, quantity and deadline, and we will pass your request to the shop.

Small and Intricate Parts: CNC and Screw Machining in San Jose with JNC CNC Machining

Some parts are small enough to sit on a fingertip and still carry a long list of features. Tiny holes, fine threads, thin walls and tight fits all have to be right. JNC CNC Machining, LLC is a family-owned San Jose CNC shop listed here with more than three decades of experience, specializing in small, intricate parts, with CNC machining, CNC turning, screw machining, aerospace parts, prototyping and custom parts, in aluminum, stainless steel, titanium, brass, copper and engineering plastics. This page explains what makes small parts hard and how to prepare a request for CNC machining in San Jose.

Why small parts are not simple parts

A small part does not mean a simple job. Tools have to be small as well, and small tools bend and break more easily. Holding the part is harder, since there is little to grip. Measuring is harder too, because a tiny feature needs a fine instrument. Chips can jam in small pockets. A shop used to this work plans for these problems from the start.

CNC machining and CNC turning

CNC machining covers milling, which makes shapes with pockets, slots and holes. CNC turning makes round parts such as pins, bushings and small shafts. The listing names both, so a request that includes a mix of shapes can stay with one source.

Screw machining

Screw machining is a way to make small round parts quickly in higher numbers. Bar stock feeds into the machine and the tools cut in a set order. It suits pins, fittings and fasteners. The listing names screw machining, so ask about it if your part is small, round and needed in quantity.

Materials

The listing names aluminum, stainless steel, titanium, brass, copper and engineering plastics. Brass and copper machine cleanly and are common for fittings and contacts. Stainless steel and titanium are stronger but take more time. Engineering plastics offer light weight and insulation. Naming the exact grade helps the shop quote correctly.

Aerospace parts on the listing

The listing names aerospace parts. If your parts go into aerospace products, tell the shop about the specification, certificates or inspection reports you need. The listing does not describe paperwork, so confirm it in the quote.

Prototyping and custom parts

For a new design, order a small prototype lot. Small parts are cheap in material, so a few extra pieces cost little, and extras are useful when a part gets damaged in testing. Custom parts are made to your drawing, so a clear drawing is the best way to get an accurate price.

Three decades of experience

The listing says the shop has more than three decades of experience. Long experience with small work can help, since many of the lessons come only from making the parts. A sample or first article will still show you how a shop performs.

Drawing tips for small parts

• Show the critical dimensions clearly and avoid crowding
• State the thread size and class
• Show where burrs must be removed
• Mark which surfaces must stay free of marks
• Avoid asking for the tightest tolerance everywhere

What to include in an RFQ

• Drawing and 3D model with revision
• Material and grade
• Quantity now and expected reorders
• Critical tolerances
• Finish
• Packaging, since small parts can be damaged if they rattle together
• Delivery date

Counting and packing

Ask how small parts are counted and bagged. For small parts, tell the shop if you need exact counts or labeled bags, so receiving goes smoothly.

A local family shop

A family-owned San Jose shop is within reach of many Silicon Valley teams. It can help when a drawing needs a quick discussion.

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