Extensive Vulcanaire High Speed Spindle Attachment System with R8 Arbor for precision grinding. Comes with 3x spindle attachments, a 300, 5,000 and 10,000 series plus a tool post grinder attachment for grinding on a lathe. Includes everything shown, grinding wheels, wrenches, spanner, instruction manual. Note: The 10,000 series spindle is missing the collet but can be ordered from Vulcan Tools.