Features Low Vibration: This industrial grade pneumatic grinding machine has low vibration when using, which is easy to grip and operate. Portable: This right angle grinding machine is small in size and light in weight, which is easy to carry, suitable for outdoor use. Ergonomic Design: The handle of this air die grinder is wrapped with red protective cover and ergonomically designed, has a better holding feel, and the hand will not tired after long term use. Excellent Zinc Alloy Material: The pneumatic sanding tool is made of high quality zinc alloy, which is wear and corrosion resistant, provides long service life. Application: This industrial right angle grinder tool 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: Grinding Machine Material: Zinc Alloy Model: YDE-4923 Collet Size: Approx.6mm/1/4in, 3mm/1/8in No Load Speed: 15000rpm Air Pressure: 90psi6.3kg/c㎡ Air Consumption: 4.0cfm Air Inlet: 1/4in Package List: 1 x Grinding Machine 2 x Wrench 1 x Air Inlet Port Package List 1 x Grinding Machine 2 x Wrench 1 x Air Inlet Port