Yes, bolt on craftsman and black and decker matrix are fully compatible...bolt on actually makes a few items that black and decker does not...like the hammer drill
No. This product is not compatible with CRAFTSMAN products.
No, it will not cut thru 3/4 mdf for making a 12" hole.
Yes, this will be compatible.
Only use router bits with a shank diameter of 1/4”.
No it does not. You must purchase them separately. This is a very good attachment. I am very happy with mine. I mostly use it on shelf edges. The price verses a full router made it a good option for me.