Page 14 - Demo

12 ISCAR GENERAL DRILLING HANDBOOKLand - The cylindrical or conical leading surface of the drill (Figure 1.2.9).Width of Land - The dimension measured at right angles to the leading edge of the land across a land (Figure 1.2.9)Leading Edge of a Land (minor cutting edge) - The edge formed by the intersection of a land and a flute (Figure 1.2.9).Figure 1.2.9leading edge of a land width of land land Body Clearance - The portion of a fluted land reduced in diameter to provide diametral clearance (Figure 1.2.10).Figure 1.2.10Body Clearance Depth of Body Clearance - The radial distance between the land and the corresponding body clearance. It is generally measured at the outer corners (Figure 1.2.11).Figure 1.2.11depth of body clearance Heel - The edge formed by the intersection of a flute and the body clearance (Figure 1.2.12).Figure 1.2.12heel