u/Ajowhan

https://preview.redd.it/dq0qypvd95zg1.jpg?width=5712&format=pjpg&auto=webp&s=45aa935cc9082e21b85228252945c55b007d961a

https://preview.redd.it/xai178vd95zg1.jpg?width=4284&format=pjpg&auto=webp&s=adc05c1c24933334fadf2c0bcf8b87e985b13f54

Anyone know what machine or method I can do to produce this beautiful connection of a cylindrical riser to a hole in a metal substrate?

Material is 24 ga galv steel. I am trying to build a sub base for flashings.

It looks to me like it got folded over and crimped but I am not too well versed in fabrication or sheet metal working.

Thank you for your time and help!

reddit.com
u/Ajowhan — 10 days ago