Grinding tool

A grinding tool (1) comprising an elongated tool body (2) comprising a first end (20), referred to as the grinding end (20), and a second end (21), opposite the first end (20), the grinding end (20) comprising a grinding head (3) with a circular cross-section, comprising an outer surface covered with an abrasive plating (4), characterised in that it comprises an arrangement of channels (5, 6) comprising an axial channel (5) running through the tool body (2) from the second end (21), over a given length of said body, and at least one coolant feed tube (6) arranged with the axial channel (5) to allow the ejection by the grinding head (3) of a cooling and/or lubricating fluid introduced into the axial channel (5) at the second end (21), the grinding head (3) having a terminal outer surface (30) bounded by a peripheral outer surface (31), said terminal outer surface (30) having at least one groove (6a to 6f) extending radially from the axial channel (5) to the peripheral outer surface (31), said groove being closed along its length by the abrasive plating (4) to form said at least one coolant feed tube (6).