A binding apparatus defining a wire path (138,140) for guiding a wire around one or more objects, the binding apparatus comprising: - a wire supply for advancing a feed end of the wire into the wire path (138,140); and - a binding tool forming a passage for the wire into and out of the wire path (138,140) and being rotatable relative to the wire path (138,140), and comprising: - a binding head, and - an inner tool member slidingly received in the binding head such that the inner tool member and the binding head are locked for relative rotation of one relative to the other, the inner tool member being threadedly connected to a rotatable spindle such that rotation of the spindle in a first direction relative to the wire path causes the inner tool member to move, axially relative to the binding head, from an initial position in the direction of a locking position wherein a cut end of the wire is retained between the binding head and the inner tool member and wherein the inner tool member is locked for further axial movement relative to the binding head, whereby further rotation of the spindle in the first direction causes rotation of the inner tool member and thereby concurrent rotation of the binding head in the first direction relative to the wire path (138,140) thus causing the feed end and the cut end, which have been guided around the objects by the binding apparatus, to be twisted relative to each other, whereby the wire is bound around the objects, and wherein the binding head is locked for rotation in a direction opposite the first direction, whereby rotation of the spindle in the opposite direction causes the inner tool member to be moved away axially from the locking position and towards the initial position. - a wire supply for advancing a feed end of the wire into the wire path (138,140); and - a binding tool forming a passage for the wire into and out of the wire path (138,140) and being rotatable relative to the wire path (138,140), and comprising: - a binding head, and - an inner tool member slidingly received in the binding head such that the inner tool member and the binding head are locked for relative rotation of one relative to the other, the inner tool member being threadedly connected to a rotatable spindle such that rotation of the spindle in a first direction relative to the wire path causes the inner tool member to move, axially relative to the binding head, from an initial position in the direction of a locking position wherein a cut end of the wire is retained between the binding head and the inner tool member and wherein the inner tool member is locked for further axial movement relative to the binding head, whereby further rotation of the spindle in the first direction causes rotation of the inner tool member and thereby concurrent rotation of the binding head in the first direction relative to the wire path (138,140) thus causing the feed end and the cut end, which have been guided around the objects by the binding apparatus, to be twisted relative to each other, whereby the wire is bound around the objects, and wherein the binding head is locked for rotation in a direction opposite the first direction, whereby rotation of the spindle in the opposite direction causes the inner tool member to be moved away axially from the locking position and towards the initial position. - a binding head, and - an inner tool member slidingly received in the binding head such that the inner tool member and the binding head are locked for relative rotation of one relative to the other, the inner tool member being threadedly connected to a rotatable spindle such that rotation of the spindle in a first direction relative to the wire path causes the inner tool member to move, axially relative to the binding head, from an initial position in the direction of a locking position wherein a cut end of the wire is retained between the binding head and the inner tool member and wherein the inner tool member is locked for further axial movement relative to the binding head, whereby further rotation of the spindle in the first direction causes rotation of the inner tool member and thereby concurrent rotation of the binding head in the first direction relative to the wire path (138,140) thus causing the feed end and the cut end, which have been guided around the objects by the binding apparatus, to be twisted relative to each other, whereby the wire is bound around the objects, and wherein the binding head is locked for rotation in a direction opposite the first direction, whereby rotation of the spindle in the opposite direction causes the inner tool member to be moved away axially from the locking position and towards the initial position.