I know its a post from a few months ago, but wanted to give my review since I bought the 8in version last week and tried it out over the weekend. Prior to use, I saw a few posts in places about screws not being tight or loosening up so when I got it last week, I made sure everything was tight.
First impression on cutting a few holes I was very impressed. It cuts fast without leaning on it which would lead me to think it will save on batteries (have my Milwaukee M18 on it)
Friday I drilled 17 holes thru 19in of ice and the battery was still showing 50% (5ah battery)
Saturday morning, setting up at my first spot, drilling the 2nd or 3rd hole, I watched a small set screw fly out from the plastic collar where the Drill adapter is connected. I picked up the screw and put it in my pocket to put it back in when I got home (didnt have tools with me on the ice). Drilled 4 or 5 more holes without issue
On the way to my 2nd spot for the day (2mile atv ride on the ice), I get there and notice the drill adapter and plastic disc are gone. I backtrack and was lucky enough to find it minus the collar bolt. That was the end of drill holes for the day.
Got home yesterday and went to the hardware store to get a new bolt and loctite. Went thru the 2 set screws and the new collar bolt with loctite then used medical tape around the top set screw and collar bolt. Going to try it again this weekend and bring tools just in case. at least the bolt or screws wont fall out with the tape.
Overall, the auger cuts great, but losing parts on the first weekend of use after going thru the screws/bolts prior to use and tightening them all is disappointing.
If its a known issue, maybe having a bolt/screw go all the way thru with a nylon lock nut should have been included?