Downhole radial force tool assembly

A radial force tool assembly for providing a radial force perpendicularly to an axial extension of the radial force tool assembly in a well for anchoring, centralising or rolling a downhole intervention tool in a well having a borehole, the radial force tool assembly having a centre axis, a front end and a rear end, and comprising:

• a tool body comprising a cavity extending across the tool body, the cavity comprising a first cavity face facing opposite a second cavity face,
• a first actuator moving a first force-transmitting member in relation to the tool body along the axial extension,
• wherein the first force-transmitting member has a first end with a first face and a second face, and
• a first rear arm member having a first end face abutting the first face and a second end face, and a second rear arm member having a first end face abutting the second face and a second end face,
• wherein an axial force of the first force-transmitting member is transmitted to the first rear arm and the second rear arm via the first face and the second face,
• and wherein each of the first end faces has a curvature so that when the first force-transmitting member moves towards the front end, the first end face of the first rear arm member rolls on the first face, projecting the first rear arm member radially outwards in a first radial direction, and the first end face of the second rear arm member rolls on the second face, projecting the second rear arm member radially outwards in a second radial direction opposite the first direction while projecting the first and second rear arm members.