Cutting insert assembly, cutting assembly and cutting insert

A cutting assembly (100) having a holder (102,390,390A, 390B), the holder having a holder (138,397,397A, 397B) and a coolant delivery passage (142,398, 398A, 398B). The lock pin (106) having a longitudinal bore (176) attached to the seat, thereby delivering the coolant passage communicated. A clamp assembly (110) attached to the holder and a cutting insert (108,420,422,424) engages. The clamp assembly has a diverter plate (116, 116A), the diverter plate having a bottom surface (370), the bottom surface of the recess defines a commutator (372), and a diverter channel ( 376). The coolant flow through the longitudinal bore and into the radial coolant grooves (460,560,660) in the commutator through the recess and into diverter channel of the cutting insert.