Abstract: Disclosed is apparatus for cutting a stoma flange comprising a first section and a second section, the first section having a first surface portion with an annular cutter element extending perpendicularly therefrom. A post extends from the surface within the cutter element and is concentric therewith, the cutter element and post each extending in an axial direction a predetermined distance from the first surface portion. The second section has first and second spaced surface portions and a through bore between the surface portions, the bore being adapted for cooperative association with the post. The first surface portions of the sections cooperate to protect the cutter, when the respective first surfaces are in confronting orientation and the post and bore are cooperatively associated.