US Patent 9434011 Coolant spray nozzle and cutter with coolant spray nozzle

A coolant spray nozzle for use in conjunction with a cutter with a coolant duct wherein the cutter retains a cutting insert with a cutting edge that engages a workpiece at an insert-chip interface having a length. The coolant spray nozzle includes a coolant spray nozzle body containing a bore and an adjustable fan spray nipple having a slot with a slot opening through which coolant discharges in a fan-shaped coolant spray so as to impinge the insert-chip interface along substantially the entire length of the insert-chip interface.