ER20 Collet Doughnut
thingiverse
Here is the rewritten text: Storage for ER20 collets, I simply created a basic enclosure in Fusion360 to hold my collets. On March 11, 2016, I updated it slightly by adding a lid and making it larger. This original design came straight from Fusion360. The STL files are available as er20a (text) and er20b (binary).
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