HONEYSEW # 788013009 Lower Blade For Janome(Newhome) 3434D 7034D 9102D HF504D Compatible with Janome (Newhome) Serger Models: Janome: 204D HF504D 634D 644D 888(Newhome) fits Sears Kenmore Models: 385.16644690 fits ELNA SERGER MODELS - 664 Alternate Part Numbers Include - 98-788013-00/900.