This is a Tool to ensure the Distributor Bushing is Installed and burnished to the correct size.
Used One time, no scratches or dents or dings.
This important tool makes installing the lower distributor drive shaft bushing into the engine block and subsequent reaming a snap. Simply tighten down to install the bushing, and spin the tool on the way out for a clean ream. This prepares the bushing properly prior to distributor installation.
$80 or trade for a Good Digital Timing light.