Patent ID: 7373936

Claim:
A portable apparatus for shaping and finishing an edge of a hard material comprising: a guide-way having a horizontal member constructed and arranged for being secured parallel with and juxtaposed to an upper surface of a hard material workpiece for providing rigidity in a first plane and a vertical member extending upwardly with respect to said upper surface of said workpiece for providing rigidity in a second plane, said horizontal member including a first bearing guide surface, said vertical member including a second bearing guide surface; a carriage slidably secured to said guide-way for movement along the length thereof, said carriage including at least one first bearing follower constructed and arranged for sliding cooperation with said first bearing surface, said carriage including at least one second bearing follower constructed and arranged for sliding cooperation with said second bearing surface, said carriage including a second linear guide-way defining an axis of approach for a rotatable tool, said second guide-way extending upward and outward at an acute angle with respect to said horizontal member; a second carriage slidably secured to said second guide-way, said second carriage constructed and arranged to support said rotatable tool; whereby said rotatable tool may be advanced into an edge of said workpiece along said axis of approach and whereby said carriage may be traversed along said guide-way for finishing an edge of said workpiece.