Feature:1. Dedicated to all kinds of light and small metal dead corners, spray polishing, burrs, rust removal and detail trimming.2. Eccentric pneumatic grinder with 3MM yaw, strong force, can throw rough grinding work.3. Can change the air flow to control the speed of grinding, polishing and waxing.4. There are 3 sizes x 6 kinds of automatic polishing pads to meet your different needs.5. Complete tools, you can operate it yourself, suitable for DIY enthusiasts.Spec:Item Type: Air Sander Material: Stainless steelModel: AT-1500R60No-Load Speed: 15000 (rpm)Air Inlet Size: Approx. 0.6cm / 0.25inCompressed Air Flow: 8CFMExhaust Direction: Rear exhaustAir Connection Screw: 1/4-19NPTNoise Value: Less than 83DBSuggested Air Tube Inner Diameter: Approx. 6.3mm / 0.2inCategory: Oscillating Pneumatic Eccentric SanderRefueling Tips for Eccentric Pneumatic Grinder: 1. This machine is highly accurate. When it is running, the Speed is high. Once any fine sand or iron filings enter the movement, it may cause the blade to break and cause the machine to malfunction, so make sure that the air inlet is clean.2. Be sure to use an oil-water separator and drain regularly to make sure that the machine is dry.3. Before use every day, be sure to add 3~5 drops of pneumatic oil to the air inlet of the machine, and connect the air pump to idle.Need To Know For Changing Disc Of Eccentric Pneumatic Grinder: 1. Locate the keyhole.2. Insert the positioning pin into the lock hole and keep the pin still.3. Turn right and replace the sand pad.Size: Approx. 2.5cm / 1in5.1cm / 2in7.6cm / 3inPackage List:1 x Air Sander3 x 1 Inch / 2 Inch / 3 Inch Polishing Disc15 x 1 Inch / 2 Inch / 3 Inch