Computer Numerical Control (CNC) Drilling Machine is perfect for mass production. It's a multipurpose machine that mills as well as turns. With tool changes, time sink for CNC drilling is the largest. For speed, hole diameters variation should be minimized. Fast drilling machines have multiple spindles in turrets with variable drills. With the movement of turret, the perfect drill is brought into place.
Today, a variety of semi-automatic machines are used for drilling. For cost-effectiveness, a right type of CNC drilling machine should be utilized. Manual or semi-automated drilling machine is ideal for low-volume jobs. A geared head is suitable for hole patterns with big differences in sizes, as well as high volume.