Replacement grinder burrs for the Rossi CC45, R80, RR45, RR55 - RR65 grinders. BURRS "HEAVY DUTY" - duration increased by 70% compared to a standard grinding burr. They do not deform and they lower contamination of ground coffee. External ø 63,5 mm - internal ø 38 mm, thickness 9 mm - 3 fixing holes.