Plain Milling Cutters
These are also called as cylindrical cutters and they have straight or helical teeth only on the periphery. The cutter with more width is called as "slab cutters". They are used to produce flat surfaces parallel to the cutter axis. They can be further classified as:
1. Light Duty Plain Milling Cutter has face width less than 20 mm. These straight teeth cutters are used for less metal removal.
2. Heavy Duty Plain Milling Cutter has wider face with helical teeth (25 to 45o helix).
3. Helical Plain Milling Cutters has a helix angle ranging from 45 to 60o.
These are capable of providing better surface finish because of better shearing action.