CNC Drilling

Computer Numerical Control (CNC) Drilling is commonly implemented for mass production. The drilling machine, however, is often a multi-function machining center that also mills and sometimes turns. The most significant time sink for CNC drilling is with tool changes, so hole diameters should be minimized for speed. The fastest machines for drilling varying holes have multiple spindles in turrets, with drills of varying diameters already mounted for drilling. The appropriate drill is brought into position through the movement of the turret so that bits do not need to be removed and replaced.