Review on 🪒 Norelco Replacement Blade Heads - PT720, PT724, PT730, AT810, AT830 PowerTouch Electric Shaver Razor Parts by Jeremy Nunez

These are new replacement heads and I'm sure they will work great with most razors. The box says "Replaces HQ8 head" and that's the head my old Norelco uses. When I installed them, the razor buzzed loudly and didn't shave. I examined them next to the old head. The center hub is shorter from the blade edge to the top of the hub. As a result, the rotating splined shaft did not fully engage. The splined bushing also appears to be slightly larger, making for a looser fit. On the other hand, I got a discount right after sending to UPS.