I had a battery op Repala a few years ago and sold it to someone else at our campground. Didn't like the way they just zipped through without following the fillets and lost a lot of meat. Really suk's on a partly frozen fish! Mine came with a case.
I haven't but I'very heard that there have different versions of the clam adapter and Milwaukee has made some changes as well in their design to deal with higher torque ratings. Give Clam a call with you drill mod4l number and I'm sure they'll be able to help you out with which is the correct for your drill.