Drilling Characteristics

Drilling Characteristics
The characteristics of drilling that set it apart from other powered metal cutting operations are:

• The chips must exit out of the hole created by the cutting.
• Chip exit can cause problems when chips are large and/or continuous.
• The drill can wander upon entrance and for deep holes.
• For deep holes in large workpieces, coolant may need to be delivered through the drill shaft to the cutting front.
• Of the powered metal cutting processes, drilling on a drill press is the most likely to be performed by someone who is not a machinist.