Turning indexable inserts FinishingFinishing - MediumLow feedMedium - Roughingap (mm) REIC D1 Applicable chipbreaker range No. of edges PR1225 PR1535 PR1705 PR1725 Cermet / coated carbide / carbide lineup Negative inserts Small double sided tools Free-cutting steel Q B PCarbon steel / Alloy steelPQ Stainless steel PQ P M Gray cast iron K Nodular cast iron Non-ferrous metals N Heat-resistant alloy Q 55° S Titanium alloy SQ Hard materials H Dimension (mm) Carbide Insert Description PVD ApplicableICSD1REtoolholder DNGU 080301MFR-F < 0.1 NN N 080302MFR-F 1 4 7 3.18 3.6 < 0.2 NNNN 080304MFR-F < 0.4 NN N Sharp edge DNGU 080301MFP-SK < 0.1 NN N 080302MFP-SK 1 4 7 3.18 3.6 < 0.2 NN N 080304MFP-SK < 0.4 NN N Polished / Sharp edge DNGU 080301MER-U < 0.1 NN 080302MER-U 1 4 7 3.18 3.6 < 0.2 NN E51 080304MER-U < 0.4 NN DNGU 080301MFR-U < 0.1 NNNN 080302MFR-U 1 4 7 3.18 3.6 < 0.2 NNNN Sharp edge 080304MFR-U < 0.4 NN N DNMU 080302E-GK080304E-GK 1 4 7 3.18 3.6 0.2 NN N0.4NNN With honing 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 SK GK 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 B54