guaranteed to fit j.c. penny serger models: 7015aguaranteed to fit janome(newhome) serger models: 603guaranteed to fit necchi serger models: nl3 & nl3r.guaranteed to fit nelco serger models: nl304guaranteed to fit riccar serger models: rl330f, rl333, rl343 & rl343drguaranteed to fit pfaff serger models: 603, 793, 794 & 796.guaranteed to fit supreme serger models: ml303, ml303r & ml93r
