Standard Pack = 1 piece(s). Overall Length=6 IN; Dimension F=0.353 IN; Insert IC=1/4 IN; Insert Screw=TX25; Lead Angle=93degree ; Minimum Bore=0.665 IN; Right/Left Hand=Left Hand; Shank Diameter=0.625 IN; Type=SDUC; Use Insert=DCMT 21.5_; Wrench=CT08;