The APKT1604PDER positive angle geometry results in low cutting force and minimal machine tool load; micro-blunting treatment of the cutting edge resists intermittent impacts from cast iron sand holes and inclusions. The AlCrN Balchas coating provides high-temperature resistance, suppresses abrasive wear caused by cast iron graphite particles, and reduces the likelihood of rapid flank wear. It can perform square shoulder milling, face milling, ramp milling, plunge milling, and helical interpolation, offering strong versatility.

The APKT050204 miniature size, compatible with D6~D10 small-diameter end mill shanks, replacing solid carbide end mills and significantly reducing tooling costs.R0.4 small radius, offering clear corners, narrow grooves, small cavities, and internal corner finishing with significant advantages; optimized groove shape reduces chip clogging (for cast iron).Low cutting load, suitable for thin-walled castings and small ribs, less prone to vibration; however, the short cutting edge limits depth of cut, suitable only for small allowances.