Grade Uncoated, Unocoated -WW, -JJWP15PEWS15PETiN-TT, -TWTiAlN-LT1, -LW1TiAlN-RT1, -RW1TiCN-CT, -CW, -CJ High-Performance Solid Carbide End Mills Grades and Grade Descriptions Coatings provide high-speed P Steel capability and are engineered M Stainless Steel for roughing to finishing. K Cast Iron N Non-Ferrous S High-Temp Alloys H Hardened Materials wearresistance toughness Coating Grade Description 05 10 15 20 25 30 35 40 45 P M Carbide grade made from high-quality, micrograin materials for cutting all types K of workpiece materials. Very high toughness ensures a controlled wear rate. N The micrograin structure enables extremely sharp cutting edges. S P M Coated carbide grade with thick PVD coating and optimised chemistry and processfor increased wear resistance. Outstanding protection in milling of steels to mitigateK crater, DOCN (depth-of-cut notching), and flank wear. Excellent performance up to 52 HRC. PVD coated carbide grade with optimised chemistry and process for increased wear resistance. State-of-the art post-coat treatment reduces friction and helps manage heat when cutting super alloys. S H P M This TiN PVD coated grade offers well-balanced machining performance for general K purpose applications. This grade offers great versatility at intermediate Metal Removal N Rates (MRR). S P Ultra-fine grain carbide grade with TiAlN PVD multilayer coating for high-performance machining of most materials. This grade is especially designed for dry milling hardened steels due to its unique combination of a high hardness substrate and tough multilayer coating. H P Ultra-fine carbide grade with TiAlN PVD coating. This grade is a high-performance grade for finishing operations, especially for hardened steels. This grade is characterised by high hardness and wear resistance. H P M General purpose coated carbide grade with TiCN PVD coating for use at intermediate K cutting speeds. For universal use due to its high wear resistance and hardness. Onlyuse wet or with MQL (Minimum Quantity Lubrication).N H N16 widia.com