TURNING INSERTS TURNING INSERTS OPTIMUM GRADES AND CHIP BREAKERS FOR EXTERNAL TURNING Finish Cutting Light Cutting Medium Cutting Stable Cutting A General Cutting R-R/L Standard Standard Unstable Cutting NX2525 NX2525 NX2525 F Finish Cutting L Light Cutting M Medium Cutting R-R/L Standard Standard NX2525 UE6110 UE6110 R-R/L Flat Top Flat Top UTi20T UP20M UP20M Carbon Steel • Alloy Steel (EX. : AISI 1045, AISI 4140) vc : Cutting speedf: Feed 11° POSITIVE INSERTS WITHOUT HOLE ap : Depth of cut. Cutting Area Chip Breaker Grade 1st Recommendationvc (SFM) f (IPR) ap (inch) F R-R/L NX2525 540 ─ 785 .002 ─ .005 .008 ─ .024 L Standard NX2525 460 ─ 655 .004 ─ .012 .012 ─ .079 Stable Cutting M Standard NX2525 460 ─ 655 .004 ─ .012 .012 ─ .079 F R-R/L NX2525 540 ─ 785 .002 ─ .005 .008 ─ .024 L Standard UE6110 510 ─ 850 .004 ─ .012 .012 ─ .079 General Cutting M Standard UE6110 510 ─ 850 .004 ─ .012 .012 ─ .079 F R-R/L UTi20T 280 ─ 395 .002 ─ .005 .008 ─ .024 L Flat Top UP20M 260 ─ 395 .004 ─ .012 .012 ─ .079 Unstable Cutting M Flat Top UP20M 260 ─ 395 .004 ─ .012 .012 ─ .079 A028