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Exair’s model 1004SS M4 NPT, back blow air nozzle delivers a very small, effective airflow for blowing debris and liquids from the internal diameters of small pipes or hoses, channels, bores, holes, internal threads, and other internal part features. An array of holes provides a forceful 360-degree airflow to clear out coolant, chips and light oils from machining processes. The nozzle is also designed to prevent chips from blowing further into a part, tube or pipe and eliminate safety hazards created by blowing debris out the far end of a pipe or tube. 

The nozzle fits inside openings as small as ¼" (6.3 mm) and is said to be effective on diameters ranging to 1" (25.4 mm). It features an M4 × 0.5 thread and is constructed of type 316 stainless steel to provide durability and resistance to corrosion.

Flats milled on the body are designed to simplify installation and secure the fit. Personal protective equipment is recommended because airflow is directed back toward the operator. Chip shields to protect the operator from the exiting debris are available. Extension pipes are also available in 6", 12", 24" and 36" to provide reach for cleaning out longer tubes and pipes.