Application of Drilling machine
Drilling machines of dissimilar capacity and configuration are basically used for originating cylindrical holes and occasionally for enlarging the existing holes to full or partial depth. But different types of drills are suitably used for several applications depending upon work material, tool material, depth and diameter of the holes. Origination and / or enlargement of existing straight by or stepped holes of dissimilar diameter and depth in wide range of work materials - this is the general or common use of drilling machines.
Making rectangular section slots by using slot drills having 3 or four flutes and 1800 cone angle