Threading Recommended cutting conditions TPGB for internal threading KTN / KTNS / SIN / CIN / S-KTN Recommended insert grades ( Vc: m/min) Workpiece material Cermet MEGACOAT MEGACOAT NANO PVD coated carbide Carbide TC60 PR1215 PR1515 PR1535 PR1115 GW15 Carbon steel 100~150 100~150 - - 100~150 - First ap (Radial) 0.3 mm and under 0.3 mm and under 0.3 mm and under Alloy steel 100~150 100~150 - - 100~150 - First ap (Radial) 0.3 mm and under 0.3 mm and under 0.3 mm and under Stainless steel 60~80 - 60~100 40~80 60~80 - First ap (Radial) 0.25 mm and under 0.25 mm and under 0.25 mm and under 0.25 mm and under Cast iron - - - - - 100 First ap (Radial) 0.3 mm and under Aluminum alloys - - - - - 150 ~400 First ap (Radial) 0.3 mm and under Brass - - - - - 150~300 First ap (Radial) 0.3m and under For 06IR / 08IR, please lower it to a figure under 40% of above condition list KTT S-STWP(-E) Recommended insert grades ( Vc: m/min) Recommended insert grades ( Vc: m/min) Workpiece material Cermet PVD coated carbide CarbideTC60PR930PR1115KW10Workpiece material Cermet PVD coatedcermet CarbideTN620TN60PV720KW10 Carbon steel 100~150 100~150 100~150 -JFirst ap (Radial)0.3 mm and under0.3 mm and under0.3 mm and underCarbon steel100~150100~150 100~150 -First ap (Radial)0.25 mm and under0.25 mm and under0.25 mm and under Alloy steel 100~150 100~150 100~150 -First ap (Radial)0.3 mm and under0.3 mm and under0.3 mm and underAlloy steel100~150100~150 100~150 - First ap (Radial) 0.25 mm and under 0.25 mm and under 0.25 mm and under Stainless steel 60~80 60~80 60~80 - Stainless steel - - - - First ap (Radial) 0.25 mm and under 0.25 mm and under 0.25 mm and under First ap (Radial) Cast iron - - - 100First ap (Radial)0.3 mm and underCast iron - - - 100 First ap (Radial) 0.25 mm and under Aluminum alloys -First ap (Radial) - - 150~4000.3 mm and under Aluminum alloys - - - 150~400 First ap (Radial) 0.25 mm and under Brass - - - 150~300First ap (Radial)0.3 mm and underBrass - - - 150~300 First ap (Radial) 0.25 mm and under KTTX / S-KTTX KITG Recommended insert grades ( Vc: m/min) Recommended insert grades ( Vc: m/min) Workpiece material Cermet PVD coated carbide Carbide Workpiece material Cermet PVD coated carbide Carbide TC60 PR930 PR1115 KW10 TC60 PR930 PR1115 KW10 Carbon steel 100~150 100~150 100~150 - Carbon steel 100~150 100~150 100~150 - First ap (Radial) 0.3 mm and under 0.3 mm and under 0.3 mm and under First ap (Radial) 0.3 mm and under 0.3 mm and under 0.3 mm and under Alloy steel 100~150 100~150 100~150 - Alloy steel 100~150 100~150 100~150 - First ap (Radial) 0.3 mm and under 0.3 mm and under 0.3 mm and under First ap (Radial) 0.3 mm and under 0.3 mm and under 0.3 mm and under Stainless steel 60~80 60~80 60~80 - Stainless steel 60~80 60~80 60~80 - First ap (Radial) 0.25 mm and under 0.25 mm and under 0.25 mm and under First ap (Radial) 0.25 mm and under 0.25 mm and under 0.25 mm and under Cast iron - - - 100 Cast iron - - - 100 First ap (Radial) 0.3 mm and under First ap (Radial) 0.3 mm and under Aluminum alloys - - - 150~400 Aluminum alloys - - - 150~400 First ap (Radial) 0.3 mm and under First ap (Radial) 0.3 mm and under Brass - - - 150~300 Brass - - - 150~300 First ap (Radial) 0.3 mm and under First ap (Radial) 0.3 mm and under : 1st Recommendation : 2nd Recommendation VNT Coolant is recommended. Recommended insert grades ( Vc: m/min) In case of using cermet insert, honing the edge with hand lapper enables Workpiece material MEGACOAT PVD coatedcarbide Carbide higher stability.In case of threading Stainless steel, please set two to three passes more PR1225 PR930 KW10 than previous description of . Carbon steel 30~50 30~50 100~150 Stainless steel 30~50 30~50 60~801) The standard cutting speed is Vc=30~50m/min. The table feed may not follow the expected conditions when Non-ferrous metals - - machining small diameter workpieces at high speeds.30~502) Coolant is recommended. J38