Grooving W±0.05 CW±0.02 CW±0.05 2°2°2°2° M S S CW±0.02CW±0.02HSS No. of edges CVDCR9025 PVDPR930 KW10 CermetTN90 Applicable toolholder External grooving Blade and toolholder KGDS-S GMM/GMG/GMGA/FGG Carbon steel / Alloy steel Q P Stainless steel P M Cast iron Q K Non-ferrous metals Q N Titanium alloy Q S Hard materials (~40 HRC) N H Hard materials (40 HRC ~) Dimension Tolerance Carbide - - Insert Description CW S RE INSL CWmin. CWmax. INSL RE GMGA 6020-300R 2 6 4.3 3.0 20 -0.02 +0.02 U G45 G INSL RE GMGA 8030-400R 2 8 5.5 4.0 20 -0.02 +0.02 U G45, G76 Full R / Copying / Sharp cutting oriented / Precision class rH L GMM 3014-04 2 3 4.3 0.4 14 - 0.05 + 0.05 U U G48 Chip control oriented / M class RE INSL GMM 3014-15R 2 3 4.3 1.5 14 - 0.05 + 0.05 U G48 Chip control oriented / M class / Full R / Copying FGGL 3020-02REFGGR3020-02 U U U234.30.220-0.02+0.02UUU INSL FGGL 4020-04FGGR4020-04 U U U244.30.420-0.02+0.02UUUG48 Chip control oriented / Precision FGGL 5020-04classFGGR5020-04 U U254.30.420-0.02+0.02UU Handed insert shows Right-hand N : Standard item R : Right hand only L : Left hand only U : Check availability Recommended cutting conditions: G121 G42