Feral Claws can be found in chests located in the Underground Jungle. They increase melee attack speed by 12% when equipped.
Feral Claws do not increase the mining and break speed of Pickaxes, Axes, and Hammers, but they do increase the speed at which they deal damage to monsters.
The attack speed bonus obtained from armor and accessories is capped at +42.86% bonus. Any attack speed bonuses on the weapon do not contribute to the cap, as the bonus from gear is calculated after weapon bonuses have been applied.