Thanks Bruce, I went ahead and ordered one anyway to save for my 45 in case it dies, but it looks like it’s just too big for the D.K.
I’m getting a max of 2.845”
There is a chance the base’s hole for the heater could be enlarged to 3 - 1/16”, maybe even 3 - 1/8”, but that would be pushing it and as you say the heater would be trimmed down to just a thin wall as well...
Maybe I’ll take a chance and try to find an even smaller hot plate on ebay...