This is no science and a rather simple conversion but yet I haven`t seen any threads on this topic. I think it could be useful for some bag makers and upholstery folks. Split needle bar machines (you can disengage and reengage the entire left and right needle bar on these machines) are rather exp
Singer 212 / 112 Double Needle >> converting into split needle - Leather Sewing Machines
Needles for Singer 112W139 - Leather Sewing Machines
CKPSMS Brand -1PCS #212-112K Double Needle Center Edge with Spring Guide Foot Compatible with/Replacement for Singer Brand 112W JUKI Brand LH-515 Brother Brand B875+ (3/8(9.5MM))
Singer 212 / 112 Double Needle >> converting into split needle - Leather Sewing Machines
Singer 20U33, thoughts : r/vintagesewing
Singer 212 Twin Needle Walking Foot, Needle Feed Industrial Sewing Machine
Singer 212 U141 Industrial Double Needle Sewing
How to Thread a Vintage Singer Sewing Machine 1920s 1930s 1940s 1950s
VanRhodes's Content
SINGER Universal Twin Stretch Sewing Machine Needle
The Singer 112WD180 Double Needle Industrial Sewing Machine on Derek Does.
Singer Sewing Machine - Double needle 212W140- SOLD
1PCS Double Needle Center Edge WITH SPRING GUIDE Foot(SIZE:3/8(9.5MM)).Size is the center distance between two needles. Please choose the size of the
CKPSMS Brand -1PCS #212-112K Double Needle Center Edge with Spring Guide Foot Compatible with/Replacement for Singer Brand 112W JUKI Brand LH-515
SINGER Universal Twin Stretch Sewing Machine Needle
Singer 212 U141 Industrial Double Needle Sewing