<h3>Compatible with the following models:<h3>Singer :413K, 416K, 418K, 513, 514, 518, 533, 538, 560J, 600, 603, 604, 620, 620E31, 625, 626, 628, 629, 630, 635, 636, 638, 639, 640E, 640E3, 645, 645E3, 645E6, 645E7, 646, 646E3, 646E6, 646E7, 648E3, 648E6, 6