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The 52 are the older ones and the 62 are newest. They both work on the 9xxx series, and I've not used the 62 yet, but haven't read great reviews on it. The 52s are available at resellers like BestBuy. Be sure not to buy third party replacement heads as they're no good. always buy the Norelco ones.
Sorry, there was a problem. Please try again later.Go to the Norelco website and review the description listed there. I remember reviewing this last year this way and made my selection based on the Official Norelco information
Sorry, there was a problem. Please try again later.The Sh90/62 seem to be slightly better than the sh90/52 blades. I definitely noticed a closer shave. I have found it’s important to not press too hard against the face . I glide over on the first pass and then shave normal afterwards. I will continue to use these blades. I wish the price would come down though. I will definitely buy the sh90/62 again.
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