The Widia M 780 face milling cutter is fitted with square, negative indexable inserts with eight cutting edges. According to the company, its positive cutting angle promotes a smooth cut, low cutting force and low power consumption. The four coated grades TN2510 (for machining GTS and GTW cast iron); TN5515 (for GGG with low/average hardness as high as GGG50, as well as GG and GGV); TN7525 (for GGG increased/high hardness from GGG50 and steel); and TN450 (for GGG increased/high hardness from GGG50 and steel) are available with three geometries—LD, GP, HE—for light, general and moderately heavy milling.
Offered in left- and right-hand versions, the cutters can also be used with a coolant screw. The wedge clamping system is used on both coarse and fine pitch options.
Editor PickHitting the Coolant Sweet Spot
Toolholders with integrated cutting fluid delivery channels offer threaded, fixed-position nozzles that direct parallel streams of coolant to pre-defined positions at the top of the cutting tool.