Metal-made honeycomb carrier body

In a metal-made honeycomb carrier body for carrying thereon an exhaust gas cleaning catalyst, said carrier body having an upstream side, a downstream side, a central axis, and opposite axial ends and being formed by superposing a planar metal band made of a metal sheet and a corrugated band made of another metal sheet one over the other in a contiguous relationship to define a plurality of network-patterned gas flow passages which extend continuously between said opposite axial ends in a direction parallel to the central axis of said resulting honeycomb carrier body, the improvement wherein, one of the planar band and the corrugated band extends outwardly relative to the other band at one of the opposite axial ends of the honeycomb carrier body and each of the plurality of network-patterned gas passages of said honeycomb carrier body are equal in length.