The workstation supports two arms and there are left and right versions of each. Its unclear if they can be easily converted.

For polishing long objects like crystal rods

Above: 92002 with 155 jig. Source

For lapping jigs.

Above: SBT 920. Source

This is shown on website 920 page but I don't see it referenced in any of the supporting material. Is this a newer version of the 92002?

when only specimen should hit plate

Sweeps jig across lapping wheel. More uniform lapping and more even wear on wheel

Non-motorized workstation.

Above: healthy factory 92002 configuration. Source

Above: surplus 92002. Source: eBay s.scherets, item 171348121700

Above unit has the drive moved from the main arm to the support arm. Wonder why