Cordless impact driver recommendation?

I bought the Craftsman 1/2, 3/8, impact, and the drill with lithium batteries. Work great for occasional use. I have a 1/2 drive air impact for those fasteners that won't come loose with the battery powered tools. I have several Ryobi drills. Whenever I use them, the Chuck loosens, and the bit falls out.

hey furyus2

i worked at home depot part time for over 8 years after i returned from iraq in 06. during my time at "the depot", i bought pretty much every ryobi battery tool they sell. i've had the same problem with drill bits falling out of the ryobi drills. i've found that you really have to tighten the chuck a lot to avoid this from happening. i've beaten the ryobi tools up a lot using them for all kinds of excess work they aren't designed to handle. i've even stripped the gear box out of one of the drills. however, even though these tools are NOT meant to be used in a commercial setting or under heavy constant use, they have stood up well to my "home owner" abuse. they are cheaper than all the other battery powered stuff out there and home depot will generally take them back and replace or give you a store credit card if they break in a short time. i'm just finishing a complete remodel of a "flip" house i bought and me and a full-time carpenter working for me have used a variety of ryobi stuff on the project. we've used the battery drills, drill driver, reciprocating saw, jig-saw, drywall cutter, caulking gun, and small table top miter saw every day and all have performed with no problem.