801 adapter would be my guess...
Now for something totally different---
Took a few minutes off to play with my new chainsaw...
I have an extensive collection of hardwoods, collected over years...
Here's some California Pepper
and some native Mesquite...
I just rough cut them to length with the chainsaw, them mill them in my wood shop.
It's good to have a wood shop
This sort of thing just didn't make sense until now...
Ok, back to it
fono
PS. check any adapter for a too long center post before use...they are adjustable---start with too short and sneak up on it till it fires---then you're good for the duration