Recommended Cutting Conditions Recommended Cutting Conditions - Boring (Positive Insert: Cutting Dia. over 10mm) [ap indicates radius] ISO Workpiece Material Hardness Cutting Range Applications Recommended Recommended Corner-R Lower Limit - Recommendation - Upper Limit Classification Chipbreaker Insert Grades (rε) Vc (m/min) ap (mm) f (mm/rev) Precision Finishing Continuous F,U TN620 0.1 250 - 300 - 350 0.05 - 0.3 - 0.5 0.03 - 0.1 - 0.15 Interruption PR1425 0.2 120 - 170 - 220 0.05 - 0.3 - 0.5 0.03 - 0.1 - 0.15 HB Finishing Continuous XP PV710 0.4 200 - 250 - 300 0.2 - 0.5 - 1.0 0.05 - 0.1 - 0.2 Low-carbon Steel ≤ Interruption CA525 0.4 150 - 200 - 250 0.2 - 0.5 - 1.0 0.05 - 0.1 - 0.2 Low-carbon Alloy 300 Finishing-Medium Continuous XQ PV710 0.4 150 - 200 - 250 0.5 - 1.0 - 2.0 0.1 - 0.15 - 0.25 Interruption CA525 0.4 100 - 150 - 200 0.5 - 1.0 - 1.5 0.1 - 0.15 - 0.2 Medium Continuous Standard PV720 0.8 100 - 150 - 200 1.0 - 1.5 - 2.5 0.1 - 0.15 - 0.3 Interruption CA525 0.8 80 - 120 - 150 1.0 - 1.5 - 2.0 0.1 - 0.15 - 0.2 Precision Finishing Continuous F,U TN620 0.2 150 - 200 - 250 0.05 - 0.3 - 0.5 0.03 - 0.1 - 0.15 Interruption PR1425 0.4 120 - 140 - 170 0.05 - 0.3 - 0.5 0.03 - 0.1 - 0.15 * HB Finishing Continuous PP PV710 0.4 150 - 200 - 250 0.2 - 0.5 - 1.0 0.05 - 0.1 - 0.2 P Medium-carbon Steel ≤ Interruption CA525 0.4 120 - 180 - 200 0.2 - 0.5 - 1.0 0.05 - 0.1 - 0.2 Medium-carbon Alloy 300 Finishing-Medium Continuous HQ PV710 0.4 120 - 180 - 220 0.5 - 1.0 - 2.0 0.1 - 0.15 - 0.25 F Interruption CA525 0.4 100 - 150 - 200 0.5 - 1.0 - 1.5 0.1 - 0.15 - 0.2 Medium Continuous Standard PV720 0.8 100 - 150 - 200 1.0 - 1.5 - 2.5 0.1 - 0.15 - 0.3 Interruption CA525 0.8 80 - 120 - 150 1.0 - 1.5 - 2.0 0.1 - 0.15 - 0.2 Precision Finishing Continuous F,U TN620 0.2 120 - 150 - 180 0.05 - 0.3 - 0.5 0.03 - 0.1 - 0.15 Interruption PR1425 0.4 110 - 130 - 160 0.05 - 0.3 - 0.5 0.03 - 0.1 - 0.15 HB Finishing Continuous PP PV710 0.4 120 - 150 - 180 0.2 - 0.5 - 1.0 0.05 - 0.1 - 0.2 Boring High-carbon Alloy ≤ Interruption CA525 0.4 100 - 120 - 150 0.2 - 0.5 - 1.0 0.05 - 0.1 - 0.2 280 Finishing-Medium Continuous HQ PV710 0.4 120 - 150 - 180 0.5 - 1.0 - 2.0 0.1 - 0.15 - 0.25 Interruption CA525 0.4 100 - 120 - 150 0.5 - 1.0 - 1.5 0.1 - 0.15 - 0.2 Medium Continuous Standard CA515 0.8 100 - 120 - 150 1.0 - 1.5 - 2.5 0.1 - 0.15 - 0.3 Interruption CA525 0.8 80 - 100 - 120 1.0 - 1.5 - 2.0 0.1 - 0.15 - 0.2 HB Finishing Continuous MQ CA6525 0.4 120 - 150 - 180 0.2 - 0.5 - 0.8 0.05 - 0.08 - 0.1 Stainless Steel ≤ Interruption PR1535 0.8 100 - 120 - 150 0.2 - 0.5 - 0.8 0.05 - 0.08 - 0.1 220 Medium Continuous Standard CA6525 0.4 120 - 150 - 180 0.5 - 1.0 - 1.5 0.05 - 0.1 - 0.2 M Interruption PR1535 0.8 100 - 120 - 150 0.5 - 1.0 - 1.5 0.05 - 0.1 - 0.2 HB Finishing Continuous MQ CA6525 0.4 80 - 100 - 120 0.2 - 0.7 - 1.0 0.05 - 0.1 - 0.15 Stainless Steel ≤ Interruption PR1535 0.8 60 - 80 - 100 0.2 - 0.7 - 1.0 0.05 - 0.1 - 0.15 300 Medium Continuous Standard CA6525 0.4 80 - 100 - 120 0.5 - 1.0 - 1.5 0.05 - 0.1 - 0.2 Interruption PR1535 0.8 60 - 80 - 100 0.5 - 1.0 - 1.5 0.05 - 0.1 - 0.2 High Speed Finishing Continuous Without Chipbreaker KBN475 0.4 400 - 500 - 600 0.05 - 0.2 - 0.5 0.05 - 0.1 - 0.15 Interruption PT600M 0.8 200 - 250 - 350 0.2 - 0.5 - 1.0 0.05 - 0.1 - 0.15 HB Finishing Continuous Standard PV7005 0.8 200 - 250 - 300 0.2 - 0.5 - 1.0 0.05 - 0.1 - 0.2 Gray Cast Iron ≤ (Gloss Oriented) Interruption TN620 0.8 120 - 180 - 230 0.2 - 0.5 - 1.0 0.05 - 0.1 - 0.2 250 Finishing Continuous Standard CA4505 0.4 150 - 180 - 200 0.2 - 0.5 - 1.0 0.05 - 0.1 - 0.2 Interruption CA4515 0.8 100 - 150 - 180 0.2 - 0.5 - 1.0 0.05 - 0.1 - 0.2 Medium Continuous Standard CA4505 0.8 100 - 150 - 200 0.5 - 1.0 - 2.0 0.1 - 0.15 - 0.2 K Interruption Without Chipbreaker CA4515 0.8 80 - 120 - 150 0.5 - 1.0 - 2.0 0.05 - 0.1 - 0.15 High Speed Finishing Continuous Without Chipbreaker KBN60M 0.4 200 - 300 - 400 0.05 - 0.2 - 0.5 0.03 - 0.05 - 0.1 Interruption PT600M 0.8 150 - 200 - 250 0.2 - 0.5 - 1.0 0.05 - 0.1 - 0.15 HB Finishing Continuous Standard PV7005 0.8 150 - 200 - 250 0.2 - 0.5 - 1.0 0.05 - 0.1 - 0.2 Nodular Cast Iron ≤ (Gloss Oriented) Interruption TN620 0.8 120 - 150 - 200 0.2 - 0.5 - 1.0 0.05 - 0.1 - 0.2 270 Finishing Continuous Standard CA4505 0.4 120 - 150 - 180 0.2 - 0.5 - 1.0 0.05 - 0.1 - 0.2 Interruption CA4515 0.8 100 - 120 - 150 0.2 - 0.5 - 1.0 0.05 - 0.1 - 0.2 Medium Continuous Standard CA4505 0.8 100 - 120 - 150 0.5 - 1.0 - 2.0 0.05 - 0.1 - 0.2 Interruption CA4515 0.8 80 - 100 - 120 0.5 - 1.0 - 2.0 0.05 - 0.1 - 0.15 High Speed Finishing Continuous Without Chipbreaker KPD001 0.2 200 - 400 -1,000 0.05 - 0.1 - 0.3 0.05 - 0.1 - 0.15 Non-ferrous Metals HB (Rainbow Surface Gloss) N Copper Alloy ≤ Finishing Continuous F,U PDL025 0.4 100 - 200 - 400 0.05 - 0.5 - 1.0 0.03 - 0.1 - 0.2 Aluminum 100 (Long Tool Life) Interruption 0.4 100 - 200 - 400 0.05 - 0.5 - 1.0 0.03 - 0.1 - 0.2 Aluminum Alloys Finishing Continuous F,U KW10 0.4 100 - 200 - 400 0.05 - 0.5 - 1.0 0.03 - 0.1 - 0.2 Interruption 0.4 100 - 200 - 400 0.05 - 0.5 - 1.0 0.03 - 0.1 - 0.2 HB Precision Finishing Continuous Without Chipbreaker KPD001 0.2 100 - 120 - 150 0.05 - 0.1 - 0.3 0.03 - 0.07 - 0.1 Titanium Alloys ≤ (Rainbow Surface Gloss) Interruption 0.4 70 - 100 - 120 0.05 - 0.1 - 0.3 0.03 - 0.07 - 0.1 400 Finishing Continuous F,U KW10 0.2 30 - 50 - 70 0.05 - 0.5 - 1.0 0.03 - 0.1 - 0.2 S Interruption 0.4 30 - 50 - 70 0.05 - 0.5 - 1.0 0.03 - 0.1 - 0.2 HB Finishing Continuous F,U KW10 0.4 10 - 30 - 50 0.05 - 0.5 - 1.0 0.03 - 0.1 - 0.2 Heat-resistant ≤ Interruption 0.4 10 - 30 - 50 0.05 - 0.5 - 1.0 0.03 - 0.1 - 0.2 Alloys 350 Finishing Continuous MQ PR1310 0.4 40 - 60 - 80 0.1 - 0.3 - 0.5 0.03 - 0.05 - 0.1 Interruption 0.8 40 - 60 - 80 0.1 - 0.3 - 0.5 0.03 - 0.05 - 0.1 40~50 Finishing Continuous HQ CA515 0.8 60 - 80 - 100 0.05 - 0.3 - 0.5 0.05 - 0.08 - 0.1 HRC Interruption Standard 0.8 30 - 50 - 70 0.05 - 0.3 - 0.5 0.05 - 0.08 - 0.1 H Hardened Steel Finishing Continuous ME KBN05M 0.4 100 - 140 - 180 0.1 - 0.2 - 0.3 0.02 - 0.07 - 0.1 Hard Materials 45~68 Interruption MET 0.8 90 - 120 - 160 0.1 - 0.2 - 0.3 0.02 - 0.07 - 0.1 HRC Medium Continuous Without Chipbreaker KBN900 0.8 60 - 80 - 100 0.3 - 0.7 - 1.0 0.03 - 0.1 - 0.15 (Negative) * When machining free-cutting steel such as SUM, please use PR1005 for Vc=200m/min or under and use PV720 / CA515, etc. F94