spurdude101 Report post Posted December 1, 2012 With a size 18 needle, can anyone tell me what is the largest thread I can use in my 2972? I tried looking at the charts, but seem to be confused with the needle size designations. thanks Quote Share this post Link to post Share on other sites
Gump Report post Posted December 1, 2012 Spurdude; An old patcher can only use size 92 thread max. With an 18 needle you will find that size 69 thread will work fine. I like a size 20 to run 92 thread. You can use 138 thread on top but it can cause binding around the bobbin. Gump. Quote Share this post Link to post Share on other sites
