# Expandable Locating Pins ### What expandable locating pins are used for Expandable locating pins are commonly used to: * locate parts via existing holes * center parts on fixture plates * hold parts securely for light to moderate milling * enable repeatable placement without press-fit pins They are especially useful when: * parts must be removed and reinstalled * drilling precision holes for dowel pins is not practical *** ### How they work * the pin is inserted into a hole * tightening the internal screw causes the pin to **expand radially** * the expansion centers the pin and applies holding force * loosening releases the pin for easy removal *** ### Locating vs. holding Expandable locating pins: * **locate parts accurately** * can also **hold parts** for light and moderate cutting loads *** ### Search terms to buy * expandable locating pin --- # Agent Instructions: Querying This Documentation If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question. Perform an HTTP GET request on the current page URL with the `ask` query parameter: ``` GET https://miwicnc.gitbook.io/miwicnc/tooling-and-workshop-setup/alignment-and-setup-aids/expandable-locating-pins.md?ask= ``` The question should be specific, self-contained, and written in natural language. The response will contain a direct answer to the question and relevant excerpts and sources from the documentation. Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.