I got my first ER-32 collet set for my old lathe years ago. Since then I have bought many more collets from ebay and my local used tool store, both imperial and metric.
Up 'til now they were all thrown in a box making it a long process to find the right size for a job.
No More!
I started with a piece of left-over luan plywood that would fit into a tool-box drawer. I marked out and drilled a grid of 1-1/4"(I think) holes with a Forstner bit.
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I added some MDF strips on the bottom for legs (and some strength); one each at top and bottom edges and one between rows near the middle.
I once made a comment here worrying about wood in contact with metal due to the wood absorbing humidity and keeping it against the metal. At that time someone suggested soaking the wood in oil (if I could figure out who said it in what thread, I would give credit!). So I soaked it face-down in a tray with clean motor oil overnight, then let it hang and drip off the following day.
I left space at one end of the drawer for the lathe adapter and pin wrenches. It turned out alright:
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All that's left is to add some little labels below each of the collets marking the size.
Not only will they be easy to find, but I'll also see what sizes I am missing.
Organizing is never finished....what to do about those large drill bits......hmmmmm.
-brino
Soaking the wood with oil is a good idea, I have accumulated a lot o tooling in various cardboard boxes. So before storing tools in them I soak the boxes with heavy oil this helps preventing moisture and chemical reaction against the tools.
Your ER racks have reminded me that I have some spare office folder drawers in a steel cabinet these are 2" deep would be ideal for ER collets.
Millalot.