Cermet / coated carbide / carbide lineup Negative inserts Small double sided tools Free-cutting steel Q P B Carbon steel / Alloy steel P Q RE Stainless steel PQ P M Gray cast iron K D1 IC Nodular cast iron Non-ferrous metals N Heat-resistant alloy Q Turning indexable inserts S 55° S Titanium alloy Q Hard materials H Applicable chipbreaker range Dimension (mm) Carbide No. of edges PVD Applicable Insert Description toolholder IC S D1 RE PR1225 PR1535 PR1705 PR1725 DNGU 080301MFR-F < 0.1 N N N Finishing 080302MFR-F 1 4 7 3.18 3.6 < 0.2 N N N N 080304MFR-F < 0.4 N N N Sharp edge Finishing - Medium DNGU 080301MFP-SK < 0.1 N N N 080302MFP-SK 1 4 7 3.18 3.6 < 0.2 N N N 080304MFP-SK < 0.4 N N 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 Low feed DNGU 080301MFR-U < 0.1 N N N N 080302MFR-U 1 4 7 3.18 3.6 < 0.2 N N N N Sharp edge 080304MFR-U < 0.4 N N N Medium - Roughing DNMU 080302E-GK 0.2 NN N 1 4 7 3.18 3.6 080304E-GK 0.4 NN N 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 ap (mm) 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