New part number 275123 with new packaging label:
"Mahlscheibenpaar 65, KE 640 / KED 640"
Etched on the rotary burr: "EK11/21SB"
Steel burrs will work will all the E65s and K30 series grinders, including the K30 Air and K30 Twin. ***REPLACING 306715***. External ø 65 mm - internal ø 38 mm, thickness 8.4 mm - 2 mounting holes, left-hand rotation. Includes one fixed (flat surface, labeled "S") and one rotary (slight lip, labeled "D") burr and four screws.
Also the burr set for the Ditting KE640 and KED640 models.
WARNING: This product can expose you to chemicals including lead, which are known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, go to www.p65warnings.ca.gov.