A repair device for underwater repair of a hole in a nuclear reactor part includes a holder (32), a cutting tool (22) held by the holder (32) and having at least one cutting tooth (70) for remachining an inner surface of the hole. The cutting tool (22) has a suction channel (44) extending into the cutting tool (22) between at least one inlet opening (46) and at least one outlet opening (48), a drive shaft (34) for rotating the cutting tool (22), the drive shaft (34) being held by the holder (32), and a suction tube (36) connected to the holder (32) and fluidly connected to the outlet opening (48) of the suction channel (44).

A reaming tool vacuum assembly comprising: a reaming tool comprising a reaming bit, the reaming bit comprising: a tip end; a base end; a plurality of flutes tapered toward the tip end; a plurality of apertures positioned between the plurality of flutes, wherein the plurality of apertures define a plurality of openings to an interior chamber of the reaming bit; a first rigid tube positioned in the interior chamber of the reaming bit, wherein the reaming bit is rotatable around a longitudinal axis of the first rigid tube and independent of the first rigid tube; and a vacuum to provide suction in the interior chamber of the reaming bit via the first rigid tube.

A reaming tool vacuum assembly comprising: a reaming tool comprising a reaming bit, the reaming bit comprising: a tip end; a base end; a plurality of flutes tapered toward the tip end; a plurality of apertures positioned between the plurality of flutes, wherein the plurality of apertures define a plurality of openings to an interior chamber of the reaming bit; a first rigid tube positioned in the interior chamber of the reaming bit, wherein the reaming bit is rotatable around a longitudinal axis of the first rigid tube and independent of the first rigid tube; and a vacuum to provide suction in the interior chamber of the reaming bit via the first rigid tube.

A repair device for underwater repair of a hole in a nuclear reactor part includes a holder (32), a cutting tool (22) held by the holder (32) and having at least one cutting tooth (70) for remachining an inner surface of the hole. The cutting tool (22) has a suction channel (44) extending into the cutting tool (22) between at least one inlet opening (46) and at least one outlet opening (48), a drive shaft (34) for rotating the cutting tool (22), the drive shaft (34) being held by the holder (32), and a suction tube (36) connected to the holder (32) and fluidly connected to the outlet opening (48) of the suction channel (44).