Pulsed high-power drill bit and drilling tool

A bit for drilling tool, said bit comprising a bit body having a drilling face and an attachment face for attaching the bit to a rotor assembly of the drilling tool, said bit body delimiting a through channel for passing fluid flow connecting the attachment face to the drilling face by opening at a circular central face opening of the drilling face, the drilling face comprising an outer surface connecting the central face opening to the attachment face and from which a plurality of drilling members evenly distributed on said outer surface extend, each drilling member comprising a fin, extending radially from the outer surface from the attachment face into the central face opening, and a plurality of drilling teeth extending from said fin by being disposed side-by-side between a first drilling tooth located at the end of the drilling face and a last drilling tooth located on the side of the attachment face, and each comprising a base and a cutting element disposed at the end of said base, the bit comprising a high-voltage electrode disposed in the through channel, in the center of the central face opening recessed from the first drilling tooth of each drilling member, each drilling member comprising a ground electrode placed at the end of the fin, at said high-voltage electrode, so as to extend at least partially in line with the central face opening recessed from the first drilling tooth of said drilling member.