Campbell Hausfeld 1/4 In. Air Die Grinder Ideal for smoothing sharp edges, deburring, polishing, porting and grinding a wide variety of materials including metal, plastic and wood. Delivers 25,000 rpm revolutions per minute to provide the speed required. Standard 1/4 collet for all types of accessories. Exhaust diffuser for quiet operation. Soft grip for increased comfort during extended use. 1 year limited warranty. Collet Diameter 1/4 In., Air Rating 3.1 CFM, Operating Pressure 90 psi, Operating Speed 25,000 rpm, Air Inlet 1/4 In. NPT, Weight 0.8 Lb., Pkg Qty 1, Package Type Box This product can expose you to chemicals including lead which are known to the state of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov