by Rancilio
$49.00
Rancilio Rocky / MD40 / Obel Bregant 50 mm (suitable for Junior and Roma models only) espresso grinder burr set. Stamped on the back with the Rancilio symbol and "M.15".
Ø 50x31x8mm left hand rotation
For Rocky users: the burr mounting screws reportedly get VERY tight and may strip when you try to remove them. You may want to consider purchasing an extra set of six
Rancilio part 69000032