Spiral cutter from CMT made of hard metal (HM) of the highest quality.
D= Diameter
S= Shaft
l= Total cutting length
l1= Cutting length UPCUT
L= Total length
Z= Number of cuts
UP/DOWN = the first part of the cutter according to the l1 measurement pushes the chips upwards, while the rest of the cutting length pushes the chips downwards. This variant gives you a nice finish both above and below the material you are milling in.