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14 ISCAR GENERAL DRILLING HANDBOOKOuter Corner - The corner formed by the Intersection of a major cutting edge and the leading edge of the land (Figure 1.2.14).Chisel Edge - The edge formed by the intersection of the flanks (Figure 1.2.14).Chisel Edge Corner - The corner formed by the Intersection of a major cutting edge and the chisel edge (Figure 1.2.14).Chisel Edge Length - The distance between the chisel edge corners (Figure 1.2.14).Figure 1.2.14chisel edge chisel edge corner outer corner chisel edge lengthchisel edge corner chisel edgeouter corner Major Cutting Edge (lip) Length - The minimum distance between the outer corner and the corresponding chisel edge corner of the major cutting edge (Figure 1.2.15).Figure 1.2.15major cutting edge (lip) length Chisel Edge Angle - The obtuse angle between the chisel edge and a line from the outer corner to the corresponding chisel edge corner. The angle is measured by projection in a plane perpendicular to the drill axis (Figure 1.2.16).Figure 1.2.16chisel edge angle

