Amazon has Milwaukee 6140-33 4-1/2-Inch Small Angle Grinder for $59 + free shipping.
Technical Details
* 7.0 Amp, 775 MWO Motor ¿ overload protection and power for daily applications
* 25% Longer Lasting Epoxy Protection ¿ extends motor life by protecting the copper wire from abrasion
* Debris Baffles ¿ protect internal components by deflecting damaging debris out of the airflow at the intake vents
* Multi-Port Exhaust ¿ reduces motor burn-up by efficiently venting hot air out of the grinder
* Tool Free, Burst Resistant Guard ¿ the only grinder in its class with a tool free guard
Milwaukee 6140-33 4-1/2-Inch Small Angle Grinder $59 FS 
