Grade CG6CG5CG55CBN6CPD1 Grades and Grade Descriptions Small Hole Boring Inserts P Steel Coatings provide high-speed M Stainless Steel capability and are engineered K Cast Iron for finishing to light roughing. 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 Coated carbide. CVD — TiC-TiCN-TiN. Tri-phase coating on a hard, low binder K content, fine-grained grade. High-speed, general-purpose grade for all kinds of steel. Gold in colour. HC-P10 P M A PVD-TiN-coated grade. Straight 9.5% Co substrate. Submicron grain. For general-purpose machining of most steels, stainless steels, high-temperature alloys, K titanium, irons, and non-ferrous materials. Performs best at low speeds N and will handle interruptions and high feed rates. S HC-S25 P A PVD-TiN coating over a very wear-resistant, unalloyed carbide substrate. For M general-purpose machining of most steels, stainless steels, high-temperature alloys, titanium, irons, and non-ferrous materials. Grade provides combination of high K edge strength and wear resistance. Coating increases wear resistance and reduces problems with built-up edge. The substrate offers superior thermal deformation resistance and depth-of-cut notch resistance. S HC-M20 PcBN tip brazed onto a carbide insert. Recommended for machining hardened steel (45–65 HRC). Use on bearing steel, hot and cold work tool steels, high-speed steels, die steels, case-hardened steels, carburised and nitrided irons, and some hard coatings. Can be run both dry and wet. BN-H25 H Polycrystalline diamond (PCD) compact grade provides exceptional hardness and abrasion resistance. CPD1 is a superior finish boring grade that will significantly improve workpiece tolerances, surface finishes, and insert tool life in high-silicon N aluminium, copper, aluminium carbon graphite, hard rubber, plastics, and/or wood. DP-N10 widia.com D39