UMI Tools

UMI's spanner wrench is CNC machined for exact tolerance and zinc plated for resistance against corrosion. This item is manufactured by UMI Performance. Made in the USA This spanner wrenched is used for adjusting and disassembling of Roto-Joints used in all UMI Performance control arms. Over time if the delrin race inside the Roto-Joint would wear, the spanner wrench is used to tighten the adjusting ring applying more pressure to the delrin inside. The spanner wrench is also used to disassemble the Roto-Joint for cleaning, inspection and rebuilding. For panhard bar Roto-Joints please see UMI Part # 0019. 90018 - Roto-Joint Spanner Wrench- Control Arms.