Door hardware opening enlargement tool
OwnerStephen JAMESinventor
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Abstract
The present invention provides an apparatus for facilitating enlargement of a circular opening in a door, the apparatus comprising a spacing means adapted to insert into the circular opening and contact the wall thereof, a guide means adapted to guide a bit portion of a hole saw, wherein the spacing means and guide means are arranged such that in use the guide means is capable of guiding the bit portion of the hole saw along the central longitudinal axis of the circular opening.
Claims15
An apparatus for facilitating enlargement of a circular opening in a door, the apparatus comprising a spacing means adapted to insert into the circular opening and contact the wall thereof, a guide means adapted to guide a bit portion of a hole saw, wherein the spacing means and guide means are arranged such that in use the guide means is capable of guiding the bit portion of the hole saw along the central longitudinal axis of the circular opening.
Dependencies are inferred from the claim text.