Originally Posted by Big Jim Mac
Thanks for that hemming attachment video. I like the looks of that. Do you need one specific to your machine or are they all the same?
"Real" ones are specific to the material and the process. Usually custom made and expensive ($200 and up). The cheap ones on eBay are generic and fit most machines that have the screw holes to the right of the needle. On my Bernina and my Singer 20U, I have some attachments that only 1 screw fits and the other does not but it still works with one screw. The hemmed works best with a narrow foot and narrow feed dogs but still works with a zig zag foot and 9mm feed dogs.
I purchased several attacments off eBay from "amindustrialsupply" and been satisfied with it for the price. They also appear to be a real company and I have called them for tips. Good service. Their non eBay website is amapparelsupply.com.