KYOCERA Grooving Toolholder, External, Series: KGM, Insert Compatibility: GMM2…/GMG2…/GMN2…/GMR2…/GML2…/GMM3…/GMG3…/GMN3…/GMR3…/GML3…/FGGR3…/FGGL3…, KGM Toolholder, 0.83 in Head Length, 6 in Overall Length, 1/2 in W x 1/2 in H Shank, Left Hand Cutting Direction, 0.0787 to 0.1181 in Groove Width, Screw Clamp, Steel, Through Coolant: No