Overcap with cutting ring for rigid paper cans

A closure for a container having a body comprising a cylindrical sidewall, the closure comprising:

• an overcap comprising a covering portion and an annular portion comprising an annular rim, an outer skirt extending downward from an outer edge of the annular rim and an annular inner wall extending downward from an inner edge of the annular rim to the covering portion;
• and
• a blade ring located between an interior surface of the overcap outer skirt and the container body and comprising at least two teeth segments circumferentially spaced around and extending radially inwardly from a ring-like structure and at least two teeth segment bodies located on an outer surface of the ring-like structure, each teeth segment body located opposite a teeth segment, each teeth segment body having a raised trailing portion extending radially outward from the rest of the blade ring, a stopping edge circumferentially rearward of the trailing portion, and a forward edge circumferentially opposite the stopping edge,
• wherein the at least two teeth segments are radially moveable between a first, radially outward position in which the teeth segments do not cut into the body sidewall and a second, radially inward position in which the teeth segments cut into the body sidewall.