Cutting speedCutting speed GOLD RUSH GRADES FOR STEEL APPLICATIONS TT8115 (CVD) P05 P25 • For high speed continuous turning on steels • Excellent wear and heat-resistance TT8115 TT8125 (CVD) P15 P35 Steel • For a wide range of steel turning applications TT8125 • Very good combination of wear resistance and toughness • For general use on steels TT5100 TT5100 (CVD) P20 P40 • For a wide range of turning operations on mild steel, low carbon TT8135 steel and low carbon alloy steels • Excellent chipping and sticking resistance TT7100 TT8135 (CVD) P25 P40 • Tough carbide substrate with good fracture resistance Feed • For a wide range of medium to roughing applications at low cutting speed on steels • For heavy turning TT7100 (CVD) P30 P45 • Very tough carbide substrate base with a CVD coating • Excellent toughness and chipping resistance • For heavy turning GOLD RUSH GRADES FOR STAINLESS STEELS AND HIGH-TEMP ALLOY APPLICATIONS M05 M15 TT5080 (PVD) S05 S15 • For turning a wide range of high-temp alloys • Very hard submicron substrate with good fracture toughness TT5080 M10 M25TT9215 (CVD)S10S25 StainlessTT9215Steel • Excellent wear resistance • For high cutting speed & continuous cutting on stainless steels TT9080 M10 M30 TT9080 (PVD) S15 S25 TT9225 • For general machining of stainless steels and high-temp alloys • Submicron substrate with good fracture toughness TT9235 M20 M35 TT9225 (CVD) S20 S35 • Good combination of insert wear resistance & fracture toughness • For general use on stainless steels Feed • Suitable for continuous and interrupted cutting on stainless steels M30 M45 TT9235 (CVD) S30 S45 • Excellent fracture resistance & toughness • For low cutting speed & interrupted cutting on stainless steels 103