If your new to an angle grinder, be very careful, they can take off a finger or cut an artery before you even feel it. I have the scars to prove it. I am nursing my latest finger cut as we speak and Ive been doing this for years and still one haste moment can cost you big time.
As for a De walt yes they are good but do you need one that heavy. the more power the more danger and it sounds like a fairly light duty 41/2 incher will do the job at much less cost and danger. just my .02
look into Hitachi brand at Lowes, after I got mine I wanted to throw rocks at my dewalt 32 watt $600 set, I gave it to the wife instead.
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