Milling cutter

Claim 1

IN A MILLING CUTTER, THE COMBINATION OF: A ROTATABLE CUTTER BODY HAVING A PLURALITY OF IDENTICAL SLOTS EQUALLY SPACED AROUND ITS PERIPHERY; AND A PLURALITY OF CUTTER INSERT ASSEMBLIES CORRESPONDING IN NUMBER TO THE NUMBER OF SAID SLOTS WITH ONE OF SAID ASSEMBLIES POSITIONED WITHIN EACH OF SAID SLOTS, EACH OF SAID ASSEMBLIES INCLUDING IN INDEXIBLE CUTTER INSERT HAVING PARALLEL SIDE FACES WHICH ARE REGULAR POLYGONS AND HAVING IDENTICAL FLAT EDGE SURFACES, SAID EDGE SURFACES INTERSECTING ONE OF SAID SIDE FACES AND FORMING IDENTICAL CUTTING EDGES, EACH OF SAID ASSEMBLIES ALSO INCLUDING INSERT-POSITIONING MEANS AND INSERT-CLAMPING MEANS, SAID INSERT-POSITIONING MEANS COMPRISING SUPPORT MEANS AND MEANS HOLDING SAID SUPPORT MEANS IN A SELECTED AND FIXED POSITION UPON SAID CUTTER BODY, SAID SUPPORT MEANS PRESENTING THREE SPACED SUPPORT PORTIONS FOR THE INSERT, TWO OF SAID SUPPORT PORTIONS BEING POSITIONED TO CONTACT AND PROVIDE SUPPORT FOR ONE OF SAID EDGE SURFACES OF THE INSERT AND THE OTHER OF SAID SUPPORT PORTIONS BEING POSITIONED TO CONTACT AND PROVIDE SUPPORT FOR ANOTHER OF SAID EDGE SURFACES OF THE INSERT IN A DIRECTION WHICH IS SUBSTANTIALLY TRANSVERSE TO THE DIRECTION OF THE SUPPORT PROVIDED BY SAID TWO OF SAID SUPPORT PORTIONS, SAID CLAMPING MEANS BEING FORMED BY A PAIR OF OPPOSED CLAMPING PORTIONS AND PRESENTING OPPOSED CLAMPING FACES WHICH CLAMP AGAINST SAID SIDE FACES OF SAID INSERT, SAID TWO OF SAID SUPPORT PORTIONS PRESENTING SUPPORTING SURFACES WHICH ARE EFFECTIVE ALONG A PLANE WHICH IS TRANSVERSE TO ONE OF SAID CUTTING EDGES OF THE CUTTER INSERT SUPPORTED THEREON AND ARE INTEGRAL WITH THE STRUCTURE PRESENTING ONE OF SAID OPPOSED CLAMPING FACES AND SAID OTHER OF SAID SUPPORTING PORTIONS COMPRISING MEANS SEPARATE THEREFROM.