H400 RNHU HP milling inserts are double-sided inserts with four 5, 6 and 8 mm Radii cutting edges for profile milling applications. Available are three different insert configurations for machining different materials and applications (HELIDO ROUND H400 LINE). Features and Benefits Durable 'SUMO TEC' AlTiN+TiN PVD coated grade for heavy operations Double sided for improved cutting performance High toughness and wear resistance Typical Applications Interrupted cut Heavy operations Stainless steel High temperature Alloyed steel Standards Insert Grade IC830 ISO Range - P/M/K: (P20-P40)(M25-M35) ISO Range - H/S/N: (S15-S30)