Iscar P290 ACCT 1204PDR-HL IC830 Carbide Milling Insert 10pc

This is a factory-new, sealed box of 10 Iscar P290 ACCT 1204PDR-HL carbide milling inserts in grade IC830. The P290 designation identifies these as inserts for Iscar's P290 family of 90° shoulder milling cutters. The ACCT insert shape is a parallelogram-style double-sided insert with a positive geometry; the 1204 size code indicates a 12 mm inscribed circle and 04 mm thickness; PDR denotes the chipbreaker geometry; and HL indicates a right-hand cutting edge orientation. IC830 is Iscar's CVD-coated submicron carbide grade featuring a TiCN/Al₂O₃ multilayer coating, optimized for ISO P (steel) machining with strong resistance to crater wear and plastic deformation — the label confirms primary suitability for ISO P materials (steel) with secondary applicability to ISO M (stainless) and ISO N (non-ferrous). Recommended cutting parameters per the label are Vc = 80–180 m/min (270–590 sfm), fz = 0.06–0.10 mm/tooth (0.0023–0.0039 ipt), and ap = 1.00–12.00 mm (0.039–0.472 in). These inserts are designed for use in Iscar P290 toolholders and milling bodies compatible with the ACCT 1204 insert seat.

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