An indexable insert includes an insert body including a plurality of cutting edge portions and an insert hole arrangement for permitting the insert to be secured to a toolholder. The insert hole arrangement includes at least one securing screw-receiving hole. The insert hole arrangement is configured to permit a securing screw to extend through the insert body along any one of at least two different axes through the insert hole arrangement, the insert hole arrangement including a screw abutment surface for abutting against the securing screw.