KYOCERA Indexable Turning Toolholder, DDJN Tool Holder, 4-1/2 in Overall Length, 3/4 in W x 3/4 in H Shank, Insert Compatibility: DNMG43…, DNMX43…, DNGG43…, DNGA43…, DNMM43…, Left Hand Cutting Direction, 1/2 in Inscribed Circle, 1 in Back of Bar to Cutting Edge, 93 deg Lead Angle, 1.54 in Head Length, ANSI Code: DDJNL124B, Negative Rake