Router bit: It's a CMT 12mm shank and about 40 or so mm wide (1,5 inch) If you're interested I can give you the item nr tomorrow. (in bed now.. [embarassed]) BUT!! I'm using this bit only in the OF2200 and wouldn't do otherwise, meaning you need some heft! With the 2200 taking 1 or 2 mm in one pass can safely be done even when climb-cutting. When I purchased the bit a year and a half ago or so, I actually called Festool Finland to ask them about their recommendations on how to dail in the speed on the router for this router bit. Full speed isn't a problem as long as you don't feel the router slowing down very much they told me. And it doesn't. Even if you could hear the motor changing the sound somewhat the torque remains the same. It's an expensive bit but the interchangeable insert knives make it totally worth it.