Features Low Vibration and Noise: This 18000rpm zinc alloy air die grinder is equipped with muffler, can operate in low noise, and low vibration, which is easy to grip. Ergonomic Handle: The handle of this air die grinder is ergonomically designed and wrapped with red protective cover, more comfortable and safe when operation, long term use without fatigue. Small Size and Lightweight: This pneumatic grinding machine is small in size and light in weight, which is easy to carry, suitable for outdoor use. Wear and Corrosion Resistant: The polishing tool set kit is made of high quality zinc alloy material, which is wear and corrosion resistant, stable and durable. Wide Application: This straight pneumatic air die grinder is ideal for local grinding, removing solder joints and rust spots on metal products, deburring furniture and wood products, mold making, automotive polishing and detailing, etc.. Specification: Item Type: Air Die Grinder Material: Zinc Alloy Collet Size: Approx.6mm/1/4in, 3mm/1/8in No Load Speed: 18000rpm Air Pressure: 90psi6.3kg/c㎡ Air Consumption: 4.5cfm Air Inlet: 1/4in Overall Length: Approx.185mm/7.3in Package List: 1 x Air Die Grinder 2 x Wrench 1 x Air Inlet Port Package List 1 x Air Die Grinder 2 x Wrench 1 x Air Inlet Port