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SpecificationItem Specific Needle Length: 7" Needle Diameter: 1/8" Product Type: Needle scaler Air Consumption (CFM): 5, Min Hose Size: 3/8" Stroke Length: 1 37/64" Operating PSI: 90 Bore Diameter: 1 1/2" Air Inlet Size: 1/4" BPM: 4,500 Needles (qty.): 19Note* New item * Come with one year warranty * You will get exactly as picture show * Any problem please contact us