Insert Selection (vc)Cutting Speed Depth of Cut (mm) Depth of Cut (mm) Depth of Cut (mm) Depth of Cut (mm) (vc)Cutting Speed Depth of Cut (mm)Depth of Cut (mm) Depth of Cut (mm) Steel Turning Insert Selection Guide Main Chipbreakers Negative Type Positive Type NMU NMU 6 NME 3 NMU NME NGE NSU NMU NSU 4 (Crater- and Wear-Resistant) 2 NGUNGE NGU(Sharper Edge) NLB NLU 2 NSU NSU 1 NLU NLB NSE NFE NSE NFB NFB 0 0 0,2 0,4 0,6 0,2 0,4 Feed Rate (mm/rev) NFE Feed Rate (mm/rev) Sub-Chipbreakers Negative Type Chipbreakers forHigh-Efficiency Machining Strong Edge Chipbreakers 6 6 NME NMX 4 4 NUX NGE 2 NSE 2 NSX NFE 0 0,2 0,4 0,6 0,8 0 0,2 0,4 0,6 Feed Rate (mm/rev) Feed Rate (mm/rev) Chipbreakers for Heavy Cutting Chipbreakers for Small Depths Wiper Inserts 15 3 6 NHW NHF 2 4 10 NGU-W NLU 1 NFE 2 NSE-W 5 NHU NFB NFA NLU-W NMP NHP 0 0,2 0,4 0,6 0 0,3 0,6 0,9 0 0,4 0,8 1,2 1,6 Feed Rate (mm/rev) Feed Rate (mm/rev) Feed Rate (mm/rev) Grades l Fine Finishing to Finishing l Finishing to Rough Cutting (m/min) (m/min) 500 500 AC805P 400 T1000A 400 AC810P AC820P 300 T1500Z 300 New AC8025P 200 T1500A 200 AC830P AC6030M 100 100 T3000Z NewAC1030U 0 0 Finishing Roughing Finishing Roughing Continuous Cutting General Cutting Interrupted Cutting Continuous Cutting General Cutting Interrupted Cutting A4