Philips NorelcoSH50/52 Shaving Heads, Compatible with Philips Shavers Series 5000 and 6000, Powerful Performance, Self-Sharpening, 3 Pieces, Model SH50/52 Replaces Model HQ9/50, HQ56/50 and RQ11/50

This set of replacement heads was perfect for my older model 5200. These are exact Philips replacement parts. I got the best shave in a year with these.

These make the shaver work like new again. I did not notice how bad the old blades had gotten. Thought the shaver was worn out and I needed a new one. Should have bought these a long time ago.

These fit my shaver from over 10 years ago perfectly. I've gone through multiple types of shavers over the years, safety, electric, etc. but I have come back to this electric shaver multiple times. These replacements fit perfect and the shave is nice too as it cuts with much less irritation as my old dull blades.It takes about 90 seconds to do a full replacement with the simple locking mechanisms. So it's nice and easy. I'll be back for more when needed.

For starters, the blades do shave better than the used ones I replaced. So I'm happy about that.When searching for Norelco H9 replacements, these seemed to be the only options from Norelco. It looks like Norelco redesigned the cutters or obsoleted the H9 design.In my originals ... each of the three disks, have three cutters (blades) in three concentric rings. The foils have three concentric perforated rings. These new ones have only one cutting ring. If you look at an original, you'll notice three perforated rings whereas these have only one perforated ring ... the outside ring.As I recall, the three cutting rings per each was a selling point for the shaver.Will I get a better or worse shave as compared to a new original design. I'll likely never know. But I do wish I had read about deep cleaning the originals and using toothpaste to clean up the original cutters. I did save the originals so I can experiment.

Works great!!!

I ordered the $15 aftermarket heads 2 weeks ago, they suck. These are definitely worth the monet!

A little fiddly to install, nice and sharp

My husband says the blades are sharp and fit and work well in his razor.