Indexable cutter blade

Claim 1

AN INDEXABLE CUTTER BLADE COMPRISING A SUBSTANTIALLY FLAT WAFER IN THE FORM OF A POLYGON HAVING A SUBSTANTIALLY FLAT BACK AND A FRONT FACE TERMINATING AROUND ITS PERIPHERY IN A PLURALITY OF EQUAL ANGULARLY SPACED PERIPHERAL CUTTING EDGES OF EQUAL LENGTHS COMPOSED OF CUTTING MATERIAL AND DEFINING AN EQUILATERAL POLYGON DISPOSED BETWEEN AND SPACED FROM THE PLANES OF SAID BACK AND FRONT FACES, CLEARANCE FACES ALONG THE SIDES OF THE POLYGON, AND CUTTING FACES ALONG THE ADJACENT MARGINS OF SAID FRONT FACE INTERSECTING THE CLEARANCE FACES TO DEFINE SAID CUTTING EDGES, SAID CLEARANCE FACES BEING FLAT, STRAIGHT, OF EQUAL LENGTHS AND EQUIDISTANTLY SPACED FROM THE CENTER OF THE POLYGON, AND SAID CUTTING FACES BEING OF IDENTICAL SIZE, SHAPE AND CONVEX CONTOUR AND CONSTITUTING CORRESPONDING AREAS OF SURFACES OF REVOLUTION HAVING RADII SUBSTANTIALLY LONGER THAN THE LENGTHS OF SAID CUTTING EDGES AND AXES EQUALLY SPACED ANGULARLY AROUND THE POLYGON AND EXTENDING TRANSVERSELY OF THE RESPECTIVE CUTTING EDGES SUBSTANTIALLY AT THE CENTERS THEREOF, SAID AXES BEING INCLINED AT EQUAL ANGLES RELATIVE TO THE PLANE OF SAID WAFER SO THAT THE ADJACENT CUTTING FACES INTERSECT ALONG LINES EXTENDING DIAGONALLY TO THE CORNERS OF THE POLYGON WHEREBY THE ADJACENT CUTTING AND CLEARANCE FACES INTERSECT SUBSTANTIALLY AT A SINGLE POINT.