Replaceable blade/knife router bits

[benomatic42]

I recently bought (but have not yet received) the CMT replaceable blade flush trim bit. I know amana makes one as well, but I don't know who else.

CMT advertises it as "good" for hardwood, "good" for MDF and "excellent" for chipboard. Other than when making patterns, I primarily intend to use it on hardwoods.

Does anybody have any experience with this, or any of the other manufacturers' replaceable blades, and how they perform with various materials?

 

[waltermitty]

I guess my question would be why. Looks like you can buy 3 - 4 very high quality (like CMT, Whiteside, Amana) bits for the same money.