Komet M05 90300 MicroKom Hi Flex Mounting Bridge for OD Machining Spindle Tool.  Alternate model number 6286607000.  This one is in excellent very lightly used condition.  Catalog has this listed with diameter range of .197" to 2.756".  Please review all photos to determine condition and identification.  Item is sold as is with No Returns.  Will be shipped via USPS Priority.