Key, Woodruff # 21, 1/4" x 1-1/4"

Used in models:23, 717, 34, 816, S23, 770W, 707W, 737, 360N6, 716, 3PN, 827, 33, 360N3, 38, 830, 727, 718, 818B, 790W, S717, 890WP, 717S, 821, 360W5, 728, 907, 1499, 1118, 905, 1496, 910, 1116, 1112, 1114, 909, 404, 1495, 912, 903, 400, 166, 1100, 1116D, 1116H, 144, 848, 654, 68, 273, BR780, BR7080, BR770A, 660, 849, 310, 1426, 847, 851, S67, 678, 688, 272, 283, 277, 320, 858, 270, 276, 316, S68, 500, 286, 2000, 275, 420, 178, 565, 315, 855, 268, 1281, S78, 87, 285, 1283, 1282, 650, 515, 1290, 568, 326, 852, 575, 505, 271, 278, 1425, 846, S69, BR7090, 845, 430, 1280, BR780A, 580, 570, 311, 269, 664, TR95, 126, TR98, TR96, TR97, 125, 791, 210, 212S, 519, 335, 679, 328, 514, 677S, 475, 513, 327S, 512, 336, 510, 330, 518, S676, 675S, 327T, 517, 680, 331, 516, 222, 520, 470, 325, 213, 221, 511, 220, 766, 735, 155, 131, 121, 122, 124, 765, 545, 736