Patent ID: 7052214

Claim:
A cutting insert ( 24 ) and holder ( 12 ) assembly comprising; an elongated tool holder ( 12 ) having a longitudinal axis A and a first end ( 14 ) having a pocket on said axis A and a second end ( 16 ) for support in a machine, said pocket being on said axis A with a bottom ( 18 ) and opposing and spaced sidewalls ( 20 ) with a diagonal ledge ( 22 ) in each of said sidewalls ( 20 ), said ledges ( 22 ) crossing one another at an intersection B as viewed perpendicularly to said sidewalls ( 20 ), a cutting insert ( 24 ) disposed in said pocket and having first and second oppositely disposed faces ( 26 ) surrounded by a plurality of cutting edges ( 28 , 30 ), said holder ( 12 ) characterized by said bottom ( 18 ) of said pocket separating said ledges ( 22 ) to define a space between said ledges ( 22 ) to separate said crossing ledges ( 22 ), and said insert ( 24 ) characterized by a raised portion ( 32 ) on each face ( 26 ) thereof to present a shoulder ( 34 ) on each face ( 26 ) with said shoulder ( 34 ) on said first face ( 26 ) crossing said shoulder ( 34 ) on said second face ( 26 ) as viewed perpendicularly to said faces ( 26 ), said assembly characterized by said shoulder ( 34 ) on said first face ( 26 ) seated on one of said ledges ( 22 ) and said shoulder ( 34 ) on said second face ( 26 ) seated on the other of said ledges ( 22 ) with at least a first of said cutting edges ( 28 , 30 ) of said insert ( 24 ) disposed above said pocket for cutting.