REAMER WITH RADIAL RELIEF AND CUTTING LAND

摘要

A finish reamer adapted to finish ream bronze-based valve guides and valve inserts is disclosed. The reamer includes a body section having a plurality of spiral flutes formed therein. The flutes define a plurality of cutting blades. Each cutting blade has an axially extending radial relief formed therein, and a land with a margin having a nonuniform width that is smaller near its leading end and larger near its trailing end.