HONEYSEW #788011007 UPPER KNIFE for JANOME / NEWHOME SERGER 204D 504D 634D 644D 888 KENMORE 385.16644690 New Home Serger Upper Knife UPPER KNIFE NEW HOME 644D (788011007) Janome (Newhome) Serger Machine Models: 204D, 504D, HD504D, 634D, 888 & 1110DX, 634D, 644D 788011007 janome knife Viking knife blade Fits Husqvarna Viking Models: 650, 660CD, 680CD, 1000L, 1001L, 1002L & 1003LCD Also fits Kenmore Models: 385.16644690 janome upper knife/blade