An anti-slip fastener remover tool comprises: a torque-tool body; a plurality of paired engagement features; a plurality of intersection points, wherein each of the plurality of intersection points is a sharp point; each of the plurality of paired engagement features comprising a first engagement feature and a second engagement feature; a cross section for the first engagement feature and the second engagement feature each comprising a bracing section, a cavity section, and a connector section, wherein the bracing section is flat; the plurality of paired engagement features being radially distributed about a rotational axis of the torque-tool body; the bracing section and the cavity section being connected to each other by the connector section; the cavity section of the first engagement feature being connected to the cavity section of the second engagement feature; the cavity section of the first engagement feature and the cavity section of the second engagement feature being oriented towards the rotational axis; the bracing section of the first engagement feature and the bracing section of the second engagement feature being oppositely positioned of each other about the cavity section of the first engagement feature and the cavity section of the second engagement feature; an arbitrary paired engagement feature from the plurality of paired engagement features and an adjacent paired engagement feature from the plurality of paired engagement features being connected to each other through a corresponding intersection point from the plurality of intersection points; a radial distance of the intersection point is larger than a radial distance of each point on the connector section of the first engagement feature on the same cross section as the intersection point; and a radial distance of the intersection point is larger than a radial distance for each point on the connector section of the second engagement feature on the same cross section as the intersection point; characterised in that the connector section being a convex segment, wherein the connector section is oriented away from the rotational axis. a torque-tool body; a plurality of paired engagement features; a plurality of intersection points, wherein each of the plurality of intersection points is a sharp point; each of the plurality of paired engagement features comprising a first engagement feature and a second engagement feature; a cross section for the first engagement feature and the second engagement feature each comprising a bracing section, a cavity section, and a connector section, wherein the bracing section is flat; the plurality of paired engagement features being radially distributed about a rotational axis of the torque-tool body; the bracing section and the cavity section being connected to each other by the connector section; the cavity section of the first engagement feature being connected to the cavity section of the second engagement feature; the cavity section of the first engagement feature and the cavity section of the second engagement feature being oriented towards the rotational axis; the bracing section of the first engagement feature and the bracing section of the second engagement feature being oppositely positioned of each other about the cavity section of the first engagement feature and the cavity section of the second engagement feature; an arbitrary paired engagement feature from the plurality of paired engagement features and an adjacent paired engagement feature from the plurality of paired engagement features being connected to each other through a corresponding intersection point from the plurality of intersection points; a radial distance of the intersection point is larger than a radial distance of each point on the connector section of the first engagement feature on the same cross section as the intersection point; and a radial distance of the intersection point is larger than a radial distance for each point on the connector section of the second engagement feature on the same cross section as the intersection point; characterised in that the connector section being a convex segment, wherein the connector section is oriented away from the rotational axis.