Comparison between Orthogonal and Oblique Cutting

Orthogonal Cutting	Oblique Cutting
The cutting edge of the tool is perpendicular to the direction of feed motion.	The cutting edge of the tool is inclined to the direction of feed motion.
Chip flow is expected to be in a direction perpendicular to the cutting edge.	The chip flow angle is more than zero.
There are only two components of force; these components are mutually perpendicular.	There are three mutually perpendicular forces acting during the cutting process.
The cutting edge is larger than the cutting width.	The cutting edge may or may not be larger than the cutting width.
Chips are in the form of a spiral coil.	Chip flow is in a sideways direction.
High heat concentration at the cutting region.	Less concentration of heat at the cutting region compared to orthogonal cutting.
For a given feed and depth of cutting, the force acts on a small area compared to oblique cutting, resulting in less tool life.	Force is acting on a larger area, resulting in more tool life.
Surface finish is poor.	Good surface finish is obtained.
Used in grooving, parting, slotting, pipe cutting.	Used in almost all industrial cutting, including drilling, grinding, milling.