an annular saw blade has a outer periphery with cutting or tearing members , an inner periphery or inner edge and an annular web portion between the inner and outer peripheries . the saw blade has at least one annular drive surface of a flexible , polymeric solid material , against which flexible drive surface a rotatable drive member is intended to be pressed to effect the rotation of the saw blade about its center of rotation . an annular saw for this saw blade has at least one rotatable drive member with projections intended to be pressed into said flexible material of the saw blade .