Rolled Hemmer Foot for Jeans

I am trying to find a rolled hemmer foot for my Kenmore sewing machine. I see rolled feet on Aliexpress that are from 3, to 10 mm. Would the 10 mm be sufficient for standard blue jeans? Or is there a specific brand or model that I should look out for? Thanks in advance, or behind, if you forgot to set your clocks. Marty