The Rockwood Pneumatic Mini Belt Sander is compact and powerful with an adjustable angle sanding arm for ease in grinding and sanding difficult to reach areas. Sealed Ball Bearing Drive Assembly Die Cast Housing Handle Mounted Paddle Trigger 18,000 RPM Free Speed Features a sealed ball bearing drive assembly for smooth, low vibration operation and long life. The precision die-cast housing provides a solid foundation and offers ergonomic, one handed operation with a convenient handle mounted paddle trigger.   Conntents: (1) Mini Belt Sander (1) 4 mm Hex-Key Wrench (3) 3/8” x 13” 60 Grit Abrasive Belts (one installed) (1) 1/4” NPT Air Inlet Coupling   Product Specifications: RPM:  18,000 free speed Air Consumption:  4 CFM @90 PSI Inlet thread size:  1/4” FNPT Required Belt Size:  3/8” x 13”, minimum 18,000 RPM