Abstract: Apparatus for forming a reinforced pressure resistant can end shell from sheet material comprises a cutting ring (11), a cutting punch shell (13) enterable into the ring (11) to blank out a disc of material therebetween, an annular draw ring (14) axially aligned with the cutting punch shell (13) to support a peripheral margin of the disc held against it by the cutting punch shell, a die center ring (15) arranged coaxially and slidably within the draw ring (14) and having an end face profiled to define a surface of a seaming panel of the can end shell, an ejector pressure ring (19) arranged coaxially and slidably within the punch shell and axially aligned with the die center ring so that when in use peripheral material of the blank is restrained between the die center ring and the ejector pressure ring, a draw punch center (16) arranged coaxially and slidably within the ejector pressure ring and reform pad (20) arranged coaxially and slidably within the die center ring to engage the central panel of the blank