Non-adjustable single cylindrical lip boring tool
OwnerBarry Y. Frisbieinventor
Life of this patent
Estimating the term…
Abstract
A first embodiment of a non-adjustable single cylindrical lip boring tool includes a shank, a body, a straight side lip, and a front cutting edge. The shank is formed on an end opposite the body. The straight side cutting lip is formed on the body. The straight side lip has a radially convoluted relief which blends into the body. A second embodiment of a non-adjustable single cylindrical lip boring tool includes a shank, a body, a helical side lip, and a front cutting edge. The shank is formed on an end opposite the body. The helical side lip is formed around the body. The helical side lip has a radially convoluted relief which blends into the body. Both embodiments of the non-adjustable single cylindrical lip boring tool may be sharpened on a hand grinder.
Claims10
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.
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 helical side lip extending outward from said body, said helical side lip having an outermost radius from said shank center line which is slightly smaller than a radius of a hole that is subsequently reamed, said helical side lip being disposed from said front of said non-adjustable single cylindrical lip boring tool to substantially said shank, said helical side lip having a tapered axial relief, said tapered axial relief extending from said front of said non-adjustable single cylindrical lip boring tool to substantially said shank, said helical side lip having a radially convoluted relief, said radially convoluted relief continuing around said tool to define a width of a front cutting edge, said radially convoluted relief having a radius of curvature which is greatest at said helical 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.
Dependencies are inferred from the claim text.