This is a Chrome Plated Side Blow nozzle with a 2mm (0.08") orifice, used on a Mazak non-contact Mark II or NTX. Double Nozzles have two chambers for the assist gas to flow through that changes the way the gas flows from the nozzle. Chrome Plated nozzles are harder and last longer than the copper nozzles. Also known as part number 46683301821/CP/DBL or L853
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