Finished Surface Rz (µinch)Finished Surface Rz (µinch) CBN & PCD TURNING INSERTS y Cutting Performance WL Wiper (External Turning) .787 With Wiper Without Wiper Theoretical Finished Surface Roughness .591 B .394 Work Material : Hardened Steel (60HRC) .196 Insert : NP-CNGA432 Machining Methods : Continuous Cutting Speed : vc= 395 SFM Depth of Cut : ap=.004 inch 0 Cutting Mode : Dry Cutting .002 .004 .006 .008 .010 .012 Feed per Revolution f (IPR) WL Wiper (Boring) .315 WL Wiper Conventional .276 .236 .197 .157 Work Material : AISI 5115 (60HRC) Insert : NP-CNGA432-FBWL2 .118 Machining Methods : Continuous Cutting Speed : vc= 525 SFM Feed : f=.012 IPR .079 Depth of Cut : ap=.004 inch Cutting Mode : Dry Cutting .039 Stable surface finish is maintained even in unstable cutting. 0 .33 .66 .98 1.31 1.64 1.97 2.30 Cutting Distance (ft) y Notes for Use No Restriction for Holders Restriction for Holders Standard holders can be used. Use a holder with end cutting angle 93° for improving wiper *( A double clamp, recommended.) high rigidity tool is efficiency. A holder with end cutting angle 91° can improve wiperefficiency, however, there is no wiper efficiency with other end cutting angles (60°, 90°,107°etc.). End Cutting Angle End Cutting Angle Non 95° 93° restriction (Specified) B019