Patent ID: 6206619
Filing Date: 2001-03-27
Classification: B23B,B23C,Y10T

Abstract:
A non-adjustable single cylindrical lip boring tool comprising:a cylindrically shaped shank sized to be received by a machine tool's standard English or Metric nominally sized diameter spindle collet or chuck;a body disposed at an end opposite said shank, said body having a front;a straight side lip extending outward from said body, said straight side lip having an outermost radius from said shank center line which is slightly smaller than a radius of a hole that is formed by subsequent reaming operation, said straight side lip being disposed from said front of said tool to substantially said shank, said straight side lip having a tapered axial relief, said tapered axial relief extending from said front of said nonadjustable single cylindrical lip boring tool to substantially said shank, said straight side lip having a radially convoluted relief, said radially convoluted relief continuing around said nonadjustable single cylindrical lip boring tool to define a width of a front cutting edge, said radially convoluted relief having a radius of curvature which is greatest at said straight side lip and least at said body, said front cutting edge being formed on a top of said side lip, said front cutting edge having a front cutting angle and a back relief.