Most of the valet models will. There are some where the pattern of the punch tabs won't work with the feather blades. Hopefully someone can answer your question. Every Valet I have will work. BTW: The feather SE blade is not new. They have had it for a long time to work with their own feather SE razor. We have recently been able to get a vendor to carry the blades. Previously, the only place you could get them was from the feather store which would not ship international. Once upon a time, Pauldog got a member in Japan to work as a middle man and acquired several packs of these blades. Many of us have been on the look for them since then.