Amazon.com Product Description:
The Milwaukee 4.5 Amp High-speed Die Grinder features a 2-inch grinder and can rotate at 21,000-RPMs. The unit is designed for use with mounted wheels and points up to 1-5/8-inches thick, and reinforced wheels up to 2-inches thick. The die grinder comes with a 1/4-inch collet but will accept an 1/8-inch collet as well, allowing you to grind many shapes and diameters. Lastly, the grinder sports a convenient on/off toggle switch for easy and safe use. The unit comes with a 5-year limited warranty.

What's in the Box
1/4-inch die grinder, an 11/16-inch open ended wrench, and a 1/2-inch open ended wrench.
Product Description:
Grinding in tight places around irregular surfaces is the specialty of this Milwaukee Die Grinder. This Die Grinder comes with 1/4in. collet but will accept 1/8in. collet as well. A full array of mounted points allows you to grind many shapes and diameters. U.S.A. Wheel Diameter (in.): 2, Amps: 4.5, Speed (RPM): 21,000, Switch Type: On/off toggle switch, Spindle Thread Size: 1/4in. collet, Side Handle: No, Wheel Included: No, Wrench Included: Yes, Case Included: No