08IR 20 UN INSERT GRADE I C228

IR/L-UN : Internal American UN, Full Profile (UN, UNC, UNF, UNEF), laydown threading inserts. IR/L - Ground periphery and rake, IRB - with a chipformer and peripherally ground, IRM - With a chipformer. Application: general industry.

IC228 PVD COATED (P30-P50 K25-K40) For alloy steels, aluminum alloys, austenitic stainless steel, carbon steel, cast steel, copper alloys and Exotic alloys. Suitable for roughing and semi-roughing in low speed / high feed and interrupted cut conditions. High resistance to mechanical & thermal shock.