Lower Knives #550449

For Singer, Simplicity, Babylock, Pfaff

Lower Knife #61398

For Toyota Husqvarna Viking Huskylock 901 White Serger

Upper Knife #61425 + Lower Knife #61398

For Babylock, Riccarlock, Serge-Mate, Simplicity

Upper Knife (#412585) + Lower Knife (#412749)

For Brother 3034D

Upper knife (#412585) + Lower Knives (#550449)

For BABYLOCK,CONSEW,ELNA,PFAFF,SERGE-MATE,SIMPLICITY,SINGER