Fine-Pitch Carbide Low-Helix (FPCLH) FPCLH series milling cutters are fine-pitch carbide roughing end mills featuring a 20° helix, and a modified Aluminum Chromium Nitride (AlCrN) coating that make them the perfect choice for rough milling applications on pre-hardened steels up to HRc55, mold-and-die steels, and cast iron.
The low helix angle enhances the strength of the cutter, because the core is larger, to better resist deflection. The corners have a 45° angle to reinforce the cutting edge, and all sizes are center-cutting.
Recent upgrades include higher-quality raw material, the use of a proprietary advanced honing technology, and a modified Aluminum Chromium Nitride (AlCrN) coating. All together, these upgrades improved wear resistance an average of 67% in testing on HRc35 mold steel.
The aluminum chromium-based coating has very high thermal shock stability and great wear resistance. It remains thermally stable up to 1100 degrees Celsius, so it’s good for wet or dry machining, and excellent in high-speed machining applications.