Description of LMT Onsrud 52 706 Uncoated Diameter
Solid carbide tools offer long tool life and faster cutting speeds than other substrates, but are more brittle and must be used with rigid toolholding systems. Uncoated tools feature just the base substrate without any additional treatment or coatings and are suitable for a wide range of applications. Round shanks allow use with a wide variety of toolholding systems. When run in a counterclockwise direction (right-hand cut) spiral fluted tools evacuate chips up and out of the cut to reduce clogging. Double flute, 22 degree angle.
Cuts soft plastic beautifully on my CNC router. The surface is almost as smooth as ultra high molecular weight glass when following the manufacturer's recommendations for chip feeding and loading. Worth every penny - don't be put off by the high initial cost.