Test Tube Rack for 12mmx100mm tubes (JeffCo)

Test Tube Rack for 12mmx100mm tubes (JeffCo)

thingiverse

I store my tiny electronic parts like resistors and transistors in these tubes. You'll need 12 M2x8mm self-tapping screws to secure them properly. I buy the clear plastic test tubes from eBay, specifically this item: 10X White Stoppers, 12-75mm/12-100mm Test Tubes for Lab Teaching or Pop Culture Use, found at https://www.ebay.com/p/lp/item/282860634640.

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