Pirate305 Report post Posted May 20, 2017 So I got a Singer 4452 Heavy Duty machine. I can sew cloth great but I want to sew light 2oz to 4oz leather. I don't know what size or weight thread to use or where to acquire it. Anyone have any experience with this machine or a similar one and what heavy thread and type is the best to use. Any ideas on where to find a comparison of needle size to thread? I don't think using the waxed thread is a good idea, I tried and it doesn't slide through very easy, besides I think I used to thick of a thread. Any ideas or help would be greatly appreciated. Quote Share this post Link to post Share on other sites
jimi Report post Posted May 22, 2017 http://singer29k.blogspot.com.es/ Hi there, Here is a needle and thread chart. i unfortunately know nothing about your machine but would suspect that this is only for working cloth. best thing would be to get hold of a manual for your machine and see what it says. http://www.singerco.com/uploads/download/78d2f880b6f5e05b3ad48013cb79f9694e6858ef.pdf here is a manual,it says "some leathers" you also have the needle chart etc... it would have to be very thin leather. Heavy Duty (in this case)does not mean Leather sewing machine? Quote Share this post Link to post Share on other sites
Pirate305 Report post Posted May 25, 2017 Thanks very much for the links.. Mark Quote Share this post Link to post Share on other sites
Geneva Report post Posted June 1, 2017 This machine is not intended to sew leather. It is a cloth sewing machine Quote Share this post Link to post Share on other sites
