Inside dimensions are 23-5/8" (side with the swivel wheel) x 21-11/16"
Could be used with something other that a PM66. Dont know what the weight rating is but would guesstimate the saw around 600-700 Lb
This might be Powermatic model #2042372 but I'm not sure.
I like this base better than the HTC one that's replacing it but need a longer base to allow a cabinet/support under the end for a steel extension table for router lift.
I'm selling for $70 which is pretty cheap considering the cheesy universal type used with wood rails is around $50.
SE MI local PU only
Attachment 28660Attachment 28661