CNC Tooling Basics, Part 2: End Mill Router Bit Design ...
Jan 27, 2017· First, a diagram of the parts of a CNC end mill or router bit: Cutting Diameter is the width of cutting part of the tool. Flutes are the cutting edges along the side of the mill or bit. Length of Cut or "LOC "is the length of the cutting area. Overall Length or "OAL" is the length of the entire mill or bit