A shaper blade is sort of like a fancy dado blade. Mounted in a table saw it will cut a variety of interesting profiles into wood passed over the top. In my opinion this is a tool best admired in the box. Actually using one seems to me like an activity with a poor risk profile: go with a router or a real shaper in this case.
Location: Box 68
Have you used this tool? Think my description is all wrong? Have a better example? Comment now with any thoughts you have about this tool!