Crank retention ring

I designed this ring to fit over the barrel of the JavaPresse Manual Coffee Grinder (https://www.amazon.com/gp/product/B013R3Q7B2/). Both handle and barrel are a very close fit (inner diameter of the ring is 48.5 mm; inner width of handle holder is 3.1 mm).

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This object was made in Tinkercad. Edit it online https://www.tinkercad.com/things/lace1YmcWB3