They are made in a factory that supplies OEM from famous manufacturers and brands such as Snap-On On, Ingersoll Rand, Mac Tools, Shino, and many more. Professional grade. An essential air saw for a sheet metal shop. For cutting and processing metal plate plastics such as wood, steel and aluminum, FRP etc. Specifications: Stroke: 0.4 inches (10 mm); Number of No-Load Strokes: 9,000 rpm; Maximum Working Pressure: 0.62 Mpa; Air Consumption: 47.4 L/min; Coupler Size: R1/4 (taper screw); Recommended Hose Size: Inner Diameter: 0.2 inches (6.5 mm); Total Length: 1.0 mm; Aluminum 0.1 inches (2 mm; Accessories: ● Replacement blade 1/4 air coupler *2 pieces *2 pieces *2 pieces *24 threads *1/4 air coupler *This product may cause air leaks due to its compatibility with your coupler. Thank you for your understanding. Please be sure to read the notes on the top page. Product appearance and specifications may change without prior notice due to product improvements. Please be aware that there may be slight scratches or dents on the product or package. Please check before placing an order: Only initial defects within 1 week of arrival of the product. Wrapping is not available. We inspect every item before shipping, but please check the product within one week of arrival. Product specifications may change without prior notice. In addition, there may be some paint bleeding, small scratches, wetting or packaging damages, but please understand this before making your purchase.