Patent ID: 8464813

Claim:
A raise boring cutter, comprising: a journal assembly having nose and gage shanks; a cutter carried by the journal assembly; a nose wiper ring carried by the journal assembly, the nose wiper ring being positioned proximate to the nose shank, wherein the nose wiper ring moves debris towards the nose shank in response to the rotation of the cutter, wherein the nose wiper ring includes a plurality of nose wipers on an outer nose wiper ring surface which extend at a non-zero angle relative to an axis of rotation of the cutter; and a gage wiper ring carried by the journal assembly, the gage wiper ring being positioned proximate to the gage shank, wherein the gage wiper ring moves debris towards the gage shank in an axial direction in response to the rotation of the cutter, wherein the gage wiper ring includes a plurality of gage wipers on an outer nose wiper ring which extend at a non-zero angle relative to an axis of rotation of the cutter.