KGD Recommended Cutting Conditions Application Map Cut-Off High Cutting force PQ GVenePralMpurposeHighPfeHed rate PF For automatic lathe (Medium feed) PG For automatic lathe (Low feed) Low For automatic lathe (Low cutting force) H Low Feed Rate High Cut-off Recommended Cutting Conditions (PF / PQ / PG Chipbreaker) Recommended Insert Grades f (mm/rev) (Cutting Speed Vc: m/min) PF (rε=0.03) PF (rε=0.15) Remarks Workpiece Material MEGACOAT MEGACOAT Edge Width W (mm) Edge Width W (mm) NANO PR1535 PR1225 PR1215 1.3/1.5 2.0 2.5/3.0 1.5 2.0 2.5/3.0 Carbon Steel ☆ ★ ☆ 70~150 70~150 70~180 0.01~0.04 0.02~0.06 0.02~0.08 0.01~0.05 0.03~0.08 0.04~0.10 Alloy Steel ☆ ★ ☆ Coolant 70~150 70~150 70~180 Stainless Steel ★ ☆ ☆ 0.01~0.03 0.01~0.04 0.01~0.05 0.01~0.04 0.03~0.07 0.04~0.08 60~120 60~120 60~150 Cast Iron ‐ ‐ ★ 0.01~0.05 0.02~0.07 0.03~0.08 0.01~0.06 0.03~0.09 0.04~0.10 80~200 ★: 1st Recommendation ☆: 2nd Recommendation Recommended Insert Grades f (mm/rev) (Cutting Speed Vc: m/min) PQ PG Remarks Workpiece Material MEGACOAT MEGACOAT DLC Coated Carbide Edge Width W (mm) Edge Width W (mm) NANO Carbide PR1535 PR1225 PR1215 PDL025 GW15 2.0 2.5/3.0 2.0 2.5/3.0 Carbon Steel ☆ ★ ☆ ‐ ‐ 70~150 70~150 70~180 0.03~0.1 0.04~0.12 0.01~0.04 0.01~0.05 Alloy Steel ☆ ★ ☆ ‐ ‐ 70~150 70~150 70~180 Stainless Steel ★ ☆ ☆ ‐ ‐ 0.02~0.07 0.02~0.08 0.01~0.03 0.01~0.04 Coolant 60~120 60~120 60~150 Cast Iron ‐ ‐ ★ ‐ ☆ 0.04~0.1 0.04~0.12 0.01~0.04 0.01~0.05 80~200 50~100 Aluminum ‐ ‐ ‐ ★ ☆ ‐ ‐ 0.01~0.05 0.01~0.06 200~500 200~450 Brass ‐ ‐ ‐ ‐ ★ ‐ ‐ 0.01~0.07 0.01~0.08 100~200 ★: 1st Recommendation ☆: 2nd Recommendation H18