Features ★ Rotational Speed and Interface: The pneumatic sander has a rotational speed of 10000RPM, an air inlet interface of 1/4in, and an air inlet pressure of 90PSI or 0.63MPa. ★ Press Switch: Our pneumatic sanding machine adopts press switch, which is convenient and comfortable to press, improve the working efficiency, no fatigue for long term use, and suitable for irregular sanding. ★ High Accuracy Chuck: The long vibration type pneumatic sanding machine adopts high accuracy chuck, smooth running, powerful head, high output power and low air consumption. ★ Internal Filter: Triangle pneumatic polisher has an internal filter in the air inlet port to prevent debris from entering so as not to damage the body. ★ Multiple Uses: Triangle pneumatic sander is suitable for producing fine finishes on wood, metal, fiberglass and other composite materials. Specification: Item Type: Pneumatic Sanding Machine Material: Alloy Steel Rotational Speed: 10000RPM Air Inlet Connection: 1/4in Air Inlet Pressure: 90PSI (0.63MPa) Package List:1 x Pneumatic Sander 1 x Hex Wrench Package List 1 x Pneumatic Sander 1 x Hex Wrench