Quantity: 2 Twin Needles per pack
Thread cord (or nylon gut) through the slot (A) and under the finger (B) of the presser foot (see graphic)
Please note that the Quick Reference Chart has a front and back
then rotate both the tool and block and use the second centering square for that round to trim the remaining sides
Lower Looper, Pfaff, Singer #550411 FootControlGetsAssembled Quantity: 2 Twin Needles perGuaranteed to fit Consew Sewing Machine Models: 14TU5432, 14TU854 Guaranteed to fit Husqvarna Viking Serger Models: Huskylock s15 Guaranteed to fit Singer Serger Models: 14CG744, 14CG754, 14HD854 Heavy Duty, 14SH644, 14SH654, 14SH744, 14SH754, 14SH764, 14U544, 14U554, 14U555, 14U557, HD0400S Guaranteed to fit Pfaff Serger Models: 4762 Hobbylock, 4772 Coverlock, Hobbylock 2. 0 Alternate Part Numbers: 93 415504 11 000, 416325601