Mountain Machine Works    Call 1-800-660-6680 Dial 0 How To Buy The ONLY Customizable Machinable  Expanding Mandrel

We have three classifications of Xpandrel designs; Standard, Modified & Custom.  Since the Xpandrel is so versatile, it can be morphed into thousands of configurations.

We offer a selection of Standard sizes in each design series.  These standard sizes are not the limits of The Xpandrel simply what we offer as standard designs requiring no further engineering or programming.


Each standard design can be Modified with the many different available feature options.  This allows most customers to use a standard design as the base for their modified design.

The versatility doesn’t stop there.  We will work with you to Custom design a Xpandrel for applications that fall outside of our standard lines.