FinishingLow feedap (mm) IC D1 Applicable chipbreaker range No. of edges PR1225 PR1535 PR1705 PR1725 Turning indexable inserts Cermet / coated carbide / carbide lineup Negative inserts Small double sided tools 60° Free-cutting steel Q PCarbon steel / Alloy steelPQ B Stainless steel PQ P M Gray cast iron K Nodular cast iron Non-ferrous metals N RE Heat-resistant alloy Q SSTitanium alloyHard materialsQH Dimension (mm) Carbide Insert Description PVD ApplicableICSD1REtoolholder TNGU 0903005MFR-F < 0.05 N 090301MFR-F090302MFR-F 1 6 5.56 3.18 3 < 0.1 NNNN< 0.2NNNN Sharp edge 090304MFR-F < 0.4 NNNN TNGU 090304MER-U 1 6 5.56 3.18 3 < 0.4 NN E52 TNGU 0903005MFR-U < 0.05 N 090301MFR-U090302MFR-U 1 6 5.56 3.18 3 < 0.1 NN N< 0.2NNNN 090304MFR-U < 0.4 NNNN Sharp edge Inserts whose corner-R(RE) dimension expressed with less than sign (e. g. <0.05 etc.) indicate model with minus tolerance for corner-R(RE). Applicable chipbreaker range 1 (Steel) 4 U 3 2 1 F 0.05 0.1 0.15 0.2 f (mm/rev) N : Standard item R : Right hand only L : Left hand only U : Check availability B55