The present invention relates to a tool gripping device for a surgical instrument. The tool gripping device comprises a rod having a longitudinal axis A, a distal end and a proximal end. The proximal end of the rod is configured to be attached to a handle assembly and the distal end is provided with a tool holding assembly capable of holding a tool member. The tool gripping device further comprises a hollow sleeve having a distal opening and a proximal end. Said hollow sleeve partially surrounds and is longitudinally and independently displaceable parallel to the longitudinal axis A along an outer surface of said longitudinally extending rod.The tool holding assembly comprises a first shank member and a second shank member. Each of said first and second shank members are provided with a curved flexible portion and a stiff tool holding portion. When said hollow sleeve is displaced along said longitudinal axis A on the outer surface of said longitudinally extending rod, the first and second shank members are moved between an open and a closed position. In the closed position said stiff tool holding portions form a clamping jaw assembly configured to clamp said tool member in a firm grip.
