Depth in Drilling Operation
In drilling operation the depth of cut is measured at right angles to the axis of the drill, i.e. the direction of feed, and is numerically equal to one-half of the diameter of the drill. It can be expressed as:
Depth of cut = (Drill dia/2) mm
Table 12 : Average Cutting Speed for HSS Drills
Table 13 : Recommended Cutting Parameters for Carbide Tipped Twist Drills
