Volstro High speed air spindle 23,000 RPM 1″ Shank 200 DA Collet
Volstro high speed air spindle. As far as I know this unit was only used for one job. And the set screw marks on the 1″ shank spindle tend to confirm it. 23,000 RPM 200 DA collet 1 collet 3/16″ incluided.