ER/L-UN : External American UN full profile (UN, UNC, UNF, UNEF) laydown threading inserts. ER/L - ground periphery and rake, ERB - with a chipformer and peripherally ground, ERM - with a chipformer for general industry.

Grade: IC908
A hard, fine grain substrate with excellent chipping resistance, combined with a new TiAlN PVD coating. Provides high wear and oxidation resistance. Recommended for a very wide range of materials applications and machining conditions.
ISO Range - P/M/K: (P15-P30)(M20-M30)(K20-K40)
ISO Range - H/S/N: (H10-H20)(S10-S25)
Grade or Coating Type: PVD
Coating Layers: TiAlN