USER GUIDE ISOTURN INSERTS Selection Guide for Chipformers and Grades ISO P - Steel ISO P - Steel ISO P - Steel Finishing Medium Roughing SF M3P GN IC8150 IC520N TIGHT TIGHT TIGHT HARD HARD HARD R3P PF IC8150 IC8250 IC530N NR PP NF/SM HT/ WG IC570 HTW TOUGH TOUGH TOUGH OPEN OPEN OPEN F3P TF IC8350 IC8150 NM/ TNM RF/LF T3P IC8250 WF/WG GN H6P - Wiper IC8250 IC3028 First Choice IS0 N - Aluminum IS0 N - Aluminum IS0 N - Aluminum Finishing Medium Roughing NF PP .CGT- AS TIGHT TIGHT TIGHT HARD HARD HARD ID5 ID5 IC20 IC520 IC520 TOUGH TOUGH TOUGH .CGT- .NMS- OPEN .CGT- OPEN OPEN AS AS 12 IC20 IC20 First Choice 106 ISCAR