Kit includes 1 each of 1/4", 3/8", 1/2" nozzle and spray bar nozzle. 90 Degree nozzles allow coolant flow close to the tool. 90 Degree nozzles make tight turns behind the cutter. Reduce view obstructions in front of the tool. Made of acetal copolymer. 90 Degree nozzles fit directly on NPT connectors in short tight spaces. Spray bar nozzles distribute coolant over a wide area with even pressure.