A tool for gripping and rotating a screw-on oil filter cartridge for an internal combustion engine, the tool comprising: a driving member (28, 28b) having a longitudinal axis (X-X), wherein the driving member is either manually rotatable or connectable to a driving tool for rotation about the longitudinal axis; gripping jaws (12a, 12b) for gripping the body of an oil filter cartridge located between the gripping jaws, wherein the gripping jaws are movable in relation to each other for gripping oil filter cartridges having bodies of different sizes; a guide arrangement (13, 14a, 14b) for guiding movement of the gripping jaws in relation to each other; biasing means (16a, 16b) for biasing the gripping jaws towards each other; a driving mechanism (28, 28c, 24, 22a, 22b, 20a, 20b, 21a, 21b) coupled to the driving member and the gripping jaws (12a, 12b) for converting rotation of the driving member about the longitudinal axis (X-X) into movement of the gripping jaws towards each other for engagement with an oil filter cartridge located between the gripping jaws and applying either screwing or unscrewing torque thereto; and a locking mechanism (30, 32, 28, 24) operable for releasably locking the gripping jaws (12a, 12b) at a pre-determined distance away from each other, characterised in that the tool comprises a release actuator for unlocking the locking mechanism and releasing movement of the gripping jaws towards each other upon engagement between the release actuator and the body of an oil filter cartridge located between the gripping jaws and wherein the release actuator is arranged to engage the body of an oil filter cartridge in a direction parallel to the longitudinal axis (X-X). a driving member (28, 28b) having a longitudinal axis (X-X), wherein the driving member is either manually rotatable or connectable to a driving tool for rotation about the longitudinal axis; gripping jaws (12a, 12b) for gripping the body of an oil filter cartridge located between the gripping jaws, wherein the gripping jaws are movable in relation to each other for gripping oil filter cartridges having bodies of different sizes; a guide arrangement (13, 14a, 14b) for guiding movement of the gripping jaws in relation to each other; biasing means (16a, 16b) for biasing the gripping jaws towards each other; a driving mechanism (28, 28c, 24, 22a, 22b, 20a, 20b, 21a, 21b) coupled to the driving member and the gripping jaws (12a, 12b) for converting rotation of the driving member about the longitudinal axis (X-X) into movement of the gripping jaws towards each other for engagement with an oil filter cartridge located between the gripping jaws and applying either screwing or unscrewing torque thereto; and a locking mechanism (30, 32, 28, 24) operable for releasably locking the gripping jaws (12a, 12b) at a pre-determined distance away from each other, characterised in that the tool comprises a release actuator for unlocking the locking mechanism and releasing movement of the gripping jaws towards each other upon engagement between the release actuator and the body of an oil filter cartridge located between the gripping jaws and wherein the release actuator is arranged to engage the body of an oil filter cartridge in a direction parallel to the longitudinal axis (X-X).