Patent ID: 6851201

Claim:
An apparatus for marking and scoring a work object comprising: a) a first member having a first and second side and made up of two spaced parts; b) a flange connected to said second side of said first member and joining said two parts; c) a second member having a first edge and second edge, said second member being connected to extend perpendicularly from said first member and between said two parts and resting on said flange, said first edge including a plurality of crenulations formed therein extending therealong for receiving an instrument, said flange having a downwardly extending projection for sliding against a work object, wherein upon positioning of said flange of said first member with said projection against an edge of said work object and positioning the instrument between adjacent ones of said plurality of crenulations and against the work object, whereby when said first member is moved along the edge of the work object the instrument is caused to mark the work object along a line parallel to the edge of the work object; d) upper and lower surfaces of said first member being in same planes as said upper and lower surfaces of said second member so that said flange is capable of guiding said apparatus along said edge of said work object; e) said first member having inner access angles in said parts adjacent the first and second edges of said second member to allow access to work object areas what would otherwise be obstructed by said first member, said access angles having edges beveled away from said work object; and f) said crenulations having chamfered corners forming a “V” shaped opening.