Guhring 9030810063500 Type NF Center Cutting Standard Length Square End Single End High Performance End Mill, 1/4 in Dia Cutter, 3/4 in Length of Cut, 4 Flutes, 1/4 in Dia Shank, 2-1/2 in OAL, nano-A™ Coated

Based on our RF 100 end mill now with variable helix angles in combination with a newly develped roughing geometry. The result is a dramatic increase in tool life in comparison to conventional rough milling cutters with round or flat knuckle-type teeth. At the same time, the surface quality of the workpiece is improved to a peak-to-valleyheight of appr. Ra = 2 to 3 um making in many cases finishing operations unnecessary. At the same time, the innovative design reduces power consumption in comparison to conventional RF 100 end mills allowing the application in unstable conditions and on less powerful machines.