3" Core Adapter to 1" EMT Conduit
thingiverse
This is a custom roll core adapter I designed to work seamlessly with a 3" shipping tube from Staples and a 1" EMT conduit from Home Depot. To achieve the perfect fit, the ID and OD may need slight adjustments based on your specific requirements for the EMT and core. Check out my design in action here: https://a360.co/2MdKw7S
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