Klein Tools 56120 Fiberglass Fish Tape Replacement Leaders, 2-Pack

Yes. The 56120 leaders are made for use with all Klein fiberglass fish tapes. Each leader is 0.188 inch diameter fiberglass, which is the size Klein's fiberglass tape line uses. They are not intended for steel or nylon tape.

Attachment is done with the Klein Tools ratcheting crimper, Cat. No. 56115V, which Klein supplies only as part of kit 56115. The crimper is not included with the 56120 two-pack, so if you don't already have it you need to source it before the leaders are usable.

That is exactly what the 56120 leaders are for. When the tip of a Klein fiberglass tape breaks or the eye wears through, you crimp on a new leader rather than replacing the reel. You need the Klein 56115V ratcheting crimper to do it, and Klein sells that crimper only in kit 56115.

No. Klein's instruction for its fish tapes is not to use any fish tape on or near live circuits, and to use extreme caution around electrical equipment. Fiberglass is non-conductive as a material, but the direction stands: de-energize the circuit, work from a stable position, and wear approved eye protection when feeding, pulling, or rewinding tape. Never back out the reel screws while tape is coiled inside.

Two leaders per pack. That gives you a spare for the second time a leader snaps off in a conduit run, which is the usual reason crews buy them. Pack weight is 1.8 oz (50 g).