Abstract: An apparatus for facilitating the securing of the free end of a line to a line attachment. Such attachments might be hook eyes, swivels, lures, fishing leaders, and the like which are commonly used in fishing with hook and line. The apparatus employs a rotating arm which wraps the free end of a line around the source line without twisting the source line to facilitate the tying of a clinch knot and other similar knots. The instrument has incorporated in or attachable to its structure; a line cutter, attachment holding means, a novel hook eye threader, and a light.