The kraken tentacle is an item found by killing cave krakens and their boss variants, krakens, in the Kraken Cove found south-west of the Piscatoris Fishing Colony. When attached to an abyssal whip, it creates the abyssal tentacle, an upgraded version of the whip that requires level 75 Attack to wield.
A minimum of level 87 Slayer is required to obtain a tentacle as a drop. Once combined with the whip, the weapon will degrade after 10,000 hits, consuming the whip and leaving only the tentacle.
The abyssal tentacle can be created by using the kraken tentacle on an abyssal whip. When using the items on each other there will be a warning message that states The tentacle will gradually consume your whip and destroy it. You won’t be able to get the whip out again. The combined item is not tradeable.
Ten kraken tentacles can be given to Lieve McCracken to enhance a trident of the seas or swamp to hold 20,000 charges instead of 2,500. Ten tentacles are required for every trident the player wishes to enhance.