A front end attachment for a powered surgical tool comprises a nose and an irrigation fitting. The nose extends forward from a proximal end of the nose. The nose defines a bore and an enclosed channel. The bore is for receiving a shaft of a cutting accessory connectable to a motor of the powered surgical tool for rotation thereby. The enclosed channel is separate from the bore. The channel extends longitudinally and helically along the nose such that, as the channel extends longitudinally, the channel curves around the nose so as to curve around the bore. The irrigation fitting is in fluid communication with the enclosed channel in the nose. The irrigation fitting is adapted to receive an irrigating fluid and to flow the fluid through the enclosed channel.