Patent ID: 7464629

Claim:
Lathe tool of the single piece type for boring with a cross-section less than 10 mm, comprising: a substantially cylindrical tool body ( 2 ) provided to be engaged and held in a tool support ( 10 ) traversed by at least one lubricant supply channel, the tool body ( 2 ) prolonged, at one end ( 3 ), by a neck ( 4 ) terminating in a head ( 5 ) comprising a cutting edge ( 6 ) and constituting the active portion of the tool ( 1 ), wherein, the neck ( 4 ) is eccentric relative to the axis of the tool body ( 2 ), the head ( 5 ), at the end of this neck ( 4 ), is eccentric relative to the axis, and the head ( 5 ) and the cutting edge ( 6 ) are inscribed in and substantially tangent to a periphery ( 8 ) of a cylindrical space ( 7 ) corresponding to the prolongation of said tool body ( 2 ) such that the cutting edge is located in an immediate prolongation of a flow of lubricant at an outlet at the one end of the tool support.