Reaming element, reaming tool and method for the production thereof

A reaming element for a reaming tool, capable of being driven rotatingly about a rotational axis, for fine machining of a previously produced bore, comprising a frontal main cutting edge for the lead of a reaming allowance of the bore and a secondary cutting edge adjoining the radially outer end of the main cutting edge, wherein the main cutting edge and the secondary cutting edge delimit a cutting face, and a ground land, which forms a support zone for guidance on the bore wall, is configured between the secondary cutting edge and the rear flank thereof, characterized in that the support zone is smaller than the land and is kept, by an intermediate section of the land, at a lateral distance from the secondary cutting edge that the intermediate section is formed by a groove-like recess between the secondary cutting edge and the support zone, that the distance of the support zone from the secondary cutting edge, measured in the peripheral direction, is 0.005 to 0.05 times the outer pitch circle diameter of the main cutting edge and that the width of the support zone, measured in the peripheral direction, is between 0.05 and 0.75 mm.