Hi, I do a lot of leather stitching, I have a ferdco 6/6 will sew up to 3/4 inch heavy stuff that's a 3 grand machine, but I also have a singer 29-9 circa 1929that u can run with a motor or trundle foot board, the neat thing about this one is you change the foot direction and not the material, and I have a consew circa 50's industrial sewing machine this bad boy will do almost 3000 stitches a minute, the good news is the last two machines I found on craigs list for nothing just come and get em read the add... If you do your own do a lot of practice runs... enjoy!!