External Grooving (External / Face Grooving) Toolholders KGMM F1 W B L2 H3 5° T T h H2 H1 T L1 • Right-hand shown KGMS F2 F1 B T W 5° L2 H3 G h H2 H1 • Right-hand shown L1 Grooving Toolholder Dimensions Std. Dimension (mm) Edge Width Spare Parts W (mm) Screw Wrench Description R L H1=h H2 H3 B L1 L2 F1 F2 T MIN. MAX. External KGMM& 1212H-3 12 4 5 12 100 10.8 SB-5TR - LTW-20 - Internal 1616H-3 16 16 25 14.8 - 4.8 3.0 5.0 - HH5X16 - 2020K-3 20 - 6 20 125 18.8 - - LW-4 Face 2525M-3 25 25 150 23.8 - HH5X25 - KGMS& 1212H-3 12 4 5 12 100 17 1.5 3.0 3.0 SB-5TR - LTW-20 - 1616H-3 16 16 17 21.5 4.8 GS-50 - - LW-3 2020K-3 20 - 6 20 125 25 - 3.0 5.0 - HH5X16 - LW-4 2525M-3 25 25 150 30 - HH5X25 - · Dimension T shows available grooving depth. (Ref. to the table G37 for Face Grooving ) Applicable Inserts [External Grooving] Applications Grooving / Turning Grooving / Turning Grooving Full-R / Copying Grooving Grooving Grooving Grooving Grooving Grooving Ref. to Page G30,G31 G30 G30 G30,G31 G32 G32 G32 G32 G32 G33 Insert (MW) MS MG MT NB TK TK CBN PCD Toolholder Description KGMS&1212H-3 GMM3014.. - - GMM3014..R - - - - - - GMG3020..MS GMG3020..R KGMM&···3 GMM3020..MW GMM3020..MS GMG3020..MG GMM3020..R GMN3 GMN3 GMM4020..MW GMG4020..MS GMG3520..MG GMG4020..R GMM3020..MT GMM3020..NB GMM3020..TK GMN3..TK GMN4 GMN4 KGMS&···3 GMM5020..MW GMM4020..MS GMG4020..MG GMM4020..R GMN4..TK GMN5 GMN5 GMG5020..MS GMG5020..MG GMG5020..R GMM5020..MS GMM5020..R Applicable Inserts [Face Grooving] Applications Grooving / Turning Undercutting Grooving / Turning Grooving / Turning Grooving Full-R / Copying Grooving Grooving Grooving Grooving Ref. to Page G31 G30,G31 G30 G30 G30 G30 G32 G32 G32 G32 Insert MW MS MG MT NB TK Toolholder Description KGMS&1212H-3 - GMM3014..RU - - - - - - - - GMG3020..MS GMG3020..R GMN3 KGMM&···3 FGG&3020.. GMG3020..RU GMM3020..MW GMM3020..MS GMG3020..MG GMM3020..R GMN4 FGG&4020.. GMG4020..RU GMM4020..MW GMG4020..MS GMG3520..MG GMG4020..R GMM3020..MT GMM3020..NB GMM3020..TK GMN5 KGMS&···3 FGG&5020.. GMG5020..RU GMM5020..MW GMM4020..MS GMG4020..MG GMM4020..R GMN3..TK GMG5020..MS GMG5020..MG GMG5020..R GMN4..TK GMM5020..MS GMM5020..R Recommended Cutting Conditions G105 Recommended Cutting Conditions of CBN / PCD G104 : Std. Item G36