Yes, the new body on the 180 Gen II (which I have) and all the 220s have beveled edges on the hole, so they don't saw through cave line.
Guy
While I don't think the make of light had anything to do with this, I just wanted to pass this along. For Fundies, Carol, Fofo and I had each bought a pair of Dorcys for backups. Carol apparently tried hers with both alkalines and lithiums. Her Salvo 21W was back at Light Monkey for repair, so she was using one of the Dorcys. Here's the relevant part of her post from yesterday:
"Oh yeah, upon washing the gear I noted I had flooded my backup light. It's a
twist on and I over twisted it off. It was totally stuck closed, so Larry took
it in the garage to see if he could open it up and it literally exploded. Like
boom! exploded. Fortunately he didn't get hurt. So a word of caution when
opening a flooded light, at least one with lithium batteries; safety glasses and
gloves might be a good idea. Such a drag too, that was a bright little light.
I had two, now down to one. Let's hope I can keep that one around longer."
Guy