Used on machines with an automatic buttonhole feature Standard Automatic Sensor Sliding Buttonhole Works with all the models listed below. MC10000, MC10001, MC11000 and MC11000 Special Edition. 525S, 625E 2040, HF3022, ML3023, MX3123, ME4018,4045LX, 4045NX, 4119 Quilter's Delight, ME4123, 4618LE, 4623LE, 6019QC, 6125QC, 6260QC, 7061NX, 7330 Magnolia, 8048, DC3018, DC3050, DE5018, DE5024, DE5124, HF5024 DS3050, HF3000, HF4045LX, HF8077, HT2008, JP720, JP760, MC2400, MC3000, MC3500, MC4000, MC4400, MC4800, MC4800QC, MC4900, MC6500P, MC6600P, MC5000, MC5700, MC8000, MC9000, MC9500, MC9700, Sew Precise, HF8100