Electronics & Communications Mold Components

Connectors, housings, and communications components mold fine features at high cavitation, where the core pin often is the feature. Precision Core Pins manufactures custom core pins, mandrels, ejector pins, and blades for electronics tooling to your print, ground as tight as 0.00005 in and made in the USA.

What we make for electronics tooling

• Small-diameter, fine-feature core pins for connector and housing geometry, in diameters down to 0.004 in.
• Pins ground to consistent diameters across high-cavitation tooling.
• Held diameters as tight as 0.00005 in, all custom and made to print.
• Domestic replacements made to match the original pin.

Why tight tolerances matter here

Electronics tooling combines two factors that put a premium on the pins. The features are fine, so the pin that forms a connector cavity or a housing detail is often the smallest, most slender element in the tool, and its diameter and straightness land directly on dimensions that have to stay in spec. And the cavitation is high, so the same pin geometry is repeated many times over in one tool.

The fine features need a close diameter, which is held by precision grinding rather than turning alone. Slender pins also have to stay straight under injection pressure, so straightness matters as much as the diameter itself.

Made to print, made in the USA

Send a drawing or a sample and we match it. For high-cavitation electronics work, we grind to consistent diameters pin-to-pin. We make single replacements for a down mold and full repeat sets that match the original print.

Frequently asked questions

Can you hold fine-feature tolerances on small-diameter pins? Yes, that is the core of the work. We grind core pin diameters down to 0.004 in and hold them as tight as 0.00005 in. Send the print and we will confirm what we can hold.

Can you match an existing connector pin? Yes. Send the worn pin or its print and we reverse it to a quotable print and reproduce it.

Do you cover communications components? Yes. Connector, housing, and communications-component tooling is the same fine-feature, high-cavitation work this page describes.

Request a quote

Send your print or sample. Call (714) 540-5621 or request a quote.