A grapnel, or a grappling hook, consists of three or more flukes attached to the end of a rope. Many examples have folding flukes for ease of transport. A grapnel is generally used for attempting climbs up sheer pitches. A grapnel may be secured in place to allow a descent.
Grapnels may be thrown into wreckage or debris to spread it out or drag items clear.
Maximum range to throw a grapnel is about 30 meters. Seven separate climbs would complete a 200-meter pitch (planting the grapnel on a ledge or projection, climbing to it, then repeating).
Grapnel climbing bypasses the procedure of sending up a lead climber; each climb is equivalent to a regular climb up the emplaced ropes.