A tool for extracting a pin from a substrate comprises a first lever arm with a bodypart having a chamber in which the free end of a pin can be received, and a secondlever arm which can pivot relative to the first lever arm. A jaw component is providedwithin the body part which can be actuated from an unlocked position in which apin within the jaw component can slide freely past the jaw component, and a lockedposition in which the pin is gripped by engagement of the jaw component with theside wall of the pin, and a support is provided which can slide relative to the bodypart, in a direction towards the substrate from which the pin is to be extracted.Initial movement of the first lever arm relative to the second lever arm causesthe jaw component to be actuated from its unlocked position to its locked positionso that an inserted pin is gripped by the jaw component. Continued movement ofthe first lever arm relative to the second lever arm causes the support to sliderelative to the body part, so that an inserted pin which is gripped by the jaw componentis displaced relative to the substrate.