I recently purchased a Milescraft 1200 adapter base kit for my old Craftsman '315' series router so I could use it with the (now common) Porter-Cable router bushings.

The base plate itself attached great--there are a multitude of slots and holes on it making it universal to most brands of router. Craftsman used a three hole system on some of their older line of routers, and I was relieved that everything lined up perfectly. There was no slop or shifting of the base plate at all once I had all three screws (included) in place.

The 1200 kit, in addition to the plate and the screws, comes with three adaptor inserts. A 3/4" bushing, a Porter-Cable bushing adaptor, and some type of universal insert of whose use I am unclear.

Documentation seems to be the only shortfall with Milescraft's products. The instructions that came with the 1200 kit were very rudimentary, and I was not able to find any comprehensive cross-reference guides as to what model routers the product would fit-- The Milescraft website (also) lists only a handful of common router models. I was otherwise satisfied with the purchase.

I bought this kit hopeing that it would fit on an old Craftsman 315 series router, so that I can make dovetails on the Porter Cable 4112 dovetail machine. The Milescraft website is not clear whether or not it will fit, but sure enough it does.

Comes with 3 bushings...an 3/4" OD, a zero clearance (not sure how to use it), and a bushing to accept Porter Cable template guides. Centering pin is handy as well.

Overall, it is 100% plastic, but very ridgid plastic. Outside of buying a new router, this was the next best thing.

4 stars becuase it is all plastic and the Milescraft website does not clearly detail ALL routers that this will fit (mine was not included in Milescraft's list).