50Mm 2 Part Aluminium Grinder . FOB Reference Price: Get Latest Price Black Leaf Aluminium Grinder 50mm 2 part Black Black Leaf Aluminium Grinder 50mm 2 part Black Black Leaf branded grinders are CNC machined out of aluminium which ensures them being strong and durable, they also include a nylon ring on which the two halves rub together with a smooth consistency each and every time.