Klasse' Serger Sewing Machine Type A Overlock Needle A5-170A Klasse 16X231 5PK SZ 80/12 (A5-170A) Serger Type A Overlock Description: Unlike sewing machines, sergers use different needle types dependent on the serger make and model. The sharp point penetrates all kinds of fabrics. Check sergers instruction manual to find correct needle type. Pfaff 793, 794, 795, 796, 797 Bernette mo203, 204, 234 Brother B500, B600 Series, M760DE, TE-B505 ELNA ALL MO 7 T SERIES HUSKY M430, M431, M435, M435C, M435D, M436, M440, M441, M530, M535, M535C, M535D JANOME COMPULOCK 888 SIMPLICITY SL804, SL804D, SL843, SL4300, SL4380 SINGER IOU SERIES, 14U12, 14U13, 14U22, 14U23, 14U32, 14U52 WHITE 20, 208, 216, 228, 500, 600, 700, 800 SERIES, 7234, 7934WD, 8234, S-34 Serger Type A 16x231, DBx1, 2053.