I’m at work and I don’t know off hand what kind of shaver I have but my brother bought it for me and sent it to the Star-K to have it checked. One of the Rabbonim who works there checks them for free. According to this Rov (who works under Rabbi Heineman), even within the same model some shavers are kosher and some are not, it all depends on the blades that are put in at the factory.
As a piece of advice- the way lift and cut works is that there are two parts to each blade- one to lift the hair and one to cut it. If one attempts to remove part of the blade without a special tool the blade may get bent and won’t turn properly. Of the previous shaver which wasn’t kosher I had a jeweler cut off the extra pieces.