High Speed and high accurate machining by new rigid substrate. The new PVD coated grade ACZ20W has a very smooth surface which brings excellent chip evacuation capability, chipping, adhesion and wear resistance. Available as square typ with 2 und 4 teeth, GLM2000 and GLM 4000 Serie, and ballnose typ form Ø 0,5 to 12 mm, GLB2000 Serie. Wide application range: Carbon steel, alloy steel, pre-harden steel, annealed steel, harden steel, stainless steel, exotic material and cast iron.