I have a Bosch 1/2" 18V. I think the model was 21618. I mainly bought it because a dealer on Ebay had a smoking deal on them. $200 shipped minus Bing cashback at the time. I emailed Bosch to make sure they were legit, then purchased it.
I have to say, I was expecting it would do blades pretty easily, but thought it might struggle with the lugs on my F350. But for $170 to my door, I figured I couldn't beat it. Well, it turns out it doesn't have trouble with anything that I have thrown at it. To boot, it was made assembled in the U.S. I was pleasently surprised by this purchase.
They don't make this particular model anymore, but this is the replacement http://www.boschtools.com/Products/T...?pid=HTH181-01