Flaw
Lay
Waviness
Roughness
Mild steel
High carbon steel
High speed steel
Diamond
External cylindrical surface
Internal cylindrical surface
Both external and internal surface
Flat surface
Perpendicular to lathe axis
Angular to lathe axis
Parallel to lathe axis
Vertical to lathe axis
Power feed can be given
Good surface finish can be obtained
External taper thread can be produce
Only external taper can be turned